Tharita Cesaroni spent many years beside actor Dermot Mulroney. But music has always been part of her own life. That became clear in 2024 when she appeared on Fox’s We Are Family as Prima Apollinaare.

She sang “Will You Still Love Me Tomorrow” before Mulroney joined her on stage. During the show, she said that “music is my heart.” Mulroney called them a “stealth Hollywood couple.”

The couple kept much of their marriage private. They raised two daughters and shared a love of music. After their divorce in 2026, Cesaroni kept making music as Prima Apollinaare.

Quick Facts

Tharita Cesaroni’s Early Life

Tharita Cesaroni was born in Milan, Italy, in 1973. Her parents are Emy Cesaroni and Franco Catullé.

Music was already part of her family. Emy Cesaroni worked as an Italian singer. This gave her daughter an early link to music.

Cesaroni has said she began singing when she was young. Music stayed part of her life as she grew older.

Dermot Mulroney is famous for acting, but he is also a skilled cellist. He has played cello for years and has worked on film music.

Their home shared that love of music. Cesaroni said the family had guitars, pianos, harps, and ukuleles.

The Name Prima Apollinaare

Cesaroni has used several names in public. She has been known as Tharita Catullé, Tharita Cesaroni, and Prima Apollinaare.

She legally changed her name to Prima Apollinaare in 2015. She later used the same name for her music.

Her songs and albums now appear under Prima Apollinaare. The name has become closely linked to her work as a singer.

Cesaroni has not shared a full public reason for choosing the name Prima Apollinaare.

How Did Tharita Cesaroni and Dermot Mulroney Build Their Family?

Tharita Cesaroni and Dermot Mulroney were together by 2008. Their first daughter, Mabel Ray Mulroney, was born that year.

Their second daughter, Sally June Mulroney, was born in 2009. Cesaroni and Mulroney married in December 2010.

Mulroney had been married before. His first wife was actress Catherine Keener. They have a son, Clyde Keener Mulroney, who was born in 1999.

Cesaroni and Mulroney went to film events together during their marriage. But they kept most of their family life private.

Mulroney once called them a “stealth Hollywood couple.” The phrase fit them well. They were seen in public, but they did not share every part of their home life.

Music was also part of their family bond. Cesaroni sang, while Mulroney played cello. Their daughters grew up in a home filled with music.

A Family Home Filled With Music

The public saw more of that side of the family in February 2024. Cesaroni appeared on We Are Family.

She performed as Prima Apollinaare and sang “Will You Still Love Me Tomorrow.” Mulroney later joined her for “Islands in the Stream.”

Cesaroni spoke about music in their home. She said the family had guitars, ukuleles, pianos, and harps.

Music was not only part of their work. It was also part of normal family life.

Mulroney’s music skills made that easy to understand. Most people know him as an actor, but he has played cello for many years.

The TV show gave Cesaroni a rare public moment of her own. She appeared as a singer, not only as Mulroney’s wife.

Prima Apollinaare’s Music Career

Tharita Cesaroni has released music as Prima Apollinaare for several years.

In 2023, she released the six song EP Alignment. Songs on the record included “Believe,” “Deeper in Love,” and “My Own Fleet.”

On May 7, 2024, she released the album 22. The album had ten songs. They included “My My,” “1000 Days,” “Blue,” “No Limits,” “Dancing With Fire,” and “Words.”

She kept releasing music after the album. Her later songs included “Strawberry,” “Maybe,” “The Devil Is Scared,” “Underbite,” and “November.”

Her music also continued while her personal life changed.

On May 29, 2026, she released the four song EP 23. It included “Automobile,” “Amazon,” “Didn’t Look Back,” and “Hola Voila’ Saluto.”

The EP came out after her divorce from Mulroney was final.

What Happened Between Tharita Cesaroni and Dermot Mulroney?

Dermot Mulroney filed for divorce in Los Angeles in June 2025. The couple had been married for almost 15 years.

Mulroney listed irreconcilable differences in the filing. He also asked for joint legal and physical custody of their daughters.

Early reports also spoke about spousal support and legal costs. Those first requests did not become the final deal.

By January 2026, the former couple had reached a deal through mediation. It covered property, custody, visits, child support, spousal support, and legal fees.

The full money terms stayed private.

A judge approved the agreement in March 2026. Cesaroni and Mulroney were then legally single.

Reports said they used mediators instead of fighting the case in court. They also agreed on terms for raising their daughters.

Tharita Cesaroni After the Divorce

Tharita Cesaroni kept working on music as her marriage came to an end.

Her music career had started before Mulroney filed for divorce. She released Alignment in 2023 and 22 in 2024.

She also released more songs in 2024 and 2025. Her music did not stop during the divorce.

Her 2026 EP 23 came out only a few months after the divorce deal was approved.

The record used the Prima Apollinaare name. It also added four new songs to her music catalog.

Relationship With Dermot Mulroney

Cesaroni and Mulroney were married for about 15 years. They also raised two daughters together.

They were seen at film premieres and other public events. But they rarely gave long talks about their marriage.

Their 2024 appearance on We Are Family was more personal. They performed together and spoke about music in their home.

Mulroney joined his wife on stage for a duet. The show aired about a year before news of their divorce became public.

Their marriage ended in 2026. But they remain the parents of Mabel Ray Mulroney and Sally June Mulroney.

Her Connection to Catherine Keener and Clyde Mulroney

Before Cesaroni, Dermot Mulroney was married to actress Catherine Keener.

Keener is known for films such as Being John Malkovich, Capote, and The 40 Year Old Virgin. She and Mulroney married in 1990.

Their son, Clyde Keener Mulroney, was born in 1999.

Mulroney and Keener later divorced. He then started a family with Cesaroni. They had two daughters together.

Clyde is the older half brother of Mabel and Sally.

Public Life and Privacy

Tharita Cesaroni has never had the same level of fame as Dermot Mulroney.

She joined him at some film events. But she did not build her public image around red carpets or interviews.

Music gave her another way to be seen in public. She could share songs and live shows while keeping much of her private life out of the press.

Cesaroni also said little in public during the divorce.

The case stayed fairly private as well. Many parts of the final agreement were not made public, including the full money terms.

Quick Facts

• Tharita Cesaroni was born in Milan, Italy, in 1973.
• Emy Cesaroni, her mother, worked as a singer.
• Franco Catullé is her father.
• Prima Apollinaare became her legal name in 2015.
• Dermot Mulroney married her in December 2010.
• Mabel Ray Mulroney was born in 2008.
• Sally June Mulroney was born in 2009.
• Clyde Keener Mulroney is Mulroney’s son with Catherine Keener.
• We Are Family featured Cesaroni and Mulroney in February 2024.
• 22 came out in May 2024.
• Mulroney filed for divorce in June 2025.
• The former couple reached a divorce deal through mediation in 2026.
• Their divorce became final in March 2026.
• 23 came out on May 29, 2026.

FAQs

Who is Tharita Cesaroni?

Tharita Cesaroni is an Italian singer who also uses the name Prima Apollinaare. She is also known as the former wife of actor Dermot Mulroney. She has released albums, EPs, and singles under her music name.

Is Tharita Cesaroni still married to Dermot Mulroney?

No. Tharita Cesaroni and Dermot Mulroney are divorced. Mulroney filed for divorce in June 2025. A judge approved their final deal in March 2026.

Why did Tharita Cesaroni change her name to Prima Apollinaare?

She legally changed her name to Prima Apollinaare in 2015. She later used the name for her music. She has not shared a full public reason for choosing it.

How many children do Tharita Cesaroni and Dermot Mulroney have?

The former couple have two daughters, Mabel Ray Mulroney and Sally June Mulroney. Mulroney also has an older son, Clyde Keener Mulroney, with actress Catherine Keener.

What music has Tharita Cesaroni released as Prima Apollinaare?

As Prima Apollinaare, she has released the 2023 EP Alignment, the 2024 album 22, several singles, and the 2026 EP 23. She kept releasing music before, during, and after her divorce.