Stars React to Death of 'Titanic' Composer James Horner

Oscar-winning composer for "Titanic," "Braveheart" and more died in plane crash.

— -- Stars are mourning the death of Oscar-winning composer James Horner, who was killed in a plane crash Monday.

The 61-year-old musician died when a small plane registered to him crashed near Santa Barbara. His death was confirmed by his agents Tuesday night.

"We have lost an amazing person with a huge heart and unbelievable talent," his assistant Sylvia Patrycja wrote on Facebook Monday. "He died doing what he loved. Thank you for all your support and love and see you down the road."

By Tuesday morning, celebrities in the film and music industries were taking to social media to mourn the death of the two-time Oscar winner and prolific composer, who penned the music for such classic films as "Titanic," "A Beautiful Mind," "Field of Dreams," "Braveheart," "Avatar," and "Apollo 13."

"Rene and I are deeply saddened by the tragic death of James Horner," Dion wrote, including husband and manager Rene Angelil. "He will always remain a great composer in our hearts. James played an important part in my career. We will miss him. We offer his family and friends our deepest sympathy."

Brilliant Composer James Horner, friend & collaborator on 7 movies has tragically died in a plane crash. My heart aches for his loved ones. — Ron Howard (@RealRonHoward) June 23, 2015,

My sincere condolences to the family, loved ones and friends of James Horner. #abeautifulmind

— Russell Crowe (@russellcrowe) June 23, 2015,

There is nothing that shaped my movie-going experience more than the musical genius of James Horner. He will live on through the ages.

— Rob Lowe (@RobLowe) June 23, 2015,

I"m so sad to hear about James Horner..He scored the first movie I did..Star Trek 2...great composer..great person...huge loss

— Kirstie Alley (@kirstiealley) June 23, 2015,

We lost a MASTER today. RIP James Horner. Your music will live forever... https://t.co/qi4n0hiX0d

— Debra Messing (@DebraMessing) June 23, 2015,

#JAMES HORNER composed the score to Volunteers, the movie that @tomhanks & I did in 1985. Beautiful score. Prayers 4 James and his family.

— Rita Wilson (@RitaWilson) June 23, 2015,

Incredibly saddened to hear about the loss of James Horner. I grew up loving his work. He leaves behind a spectacular musical legacy.

— Seth MacFarlane (@SethMacFarlane) June 23, 2015,

He wrote me a song that has such special meaning to me. We'll always remember you, James. RIP. #genius http://t.co/S4SJUuDUrW

— josh groban (@joshgroban) June 23, 2015,

I am so sad to hear about James Horner. He composed the most beautiful soundtrack of all time... http://t.co/Bg1OG28h9w

— Ellie Goulding (@elliegoulding) June 23, 2015,

To work with James Horner was one of the biggest moments of my life. He was such a kind soul, I'm so saddened

— Leona Lewis (@leonalewis) June 23, 2015,

RIP James Horner. Thank U for the beautiful music. We will miss what beautiful music was yet to come

— Diane Warren (@Diane_Warren) June 23, 2015

My sincere condolences to the family, loved ones and friends of James Horner. #abeautifulmind

There is nothing that shaped my movie-going experience more than the musical genius of James Horner. He will live on through the ages.

I"m so sad to hear about James Horner..He scored the first movie I did..Star Trek 2...great composer..great person...huge loss

We lost a MASTER today. RIP James Horner. Your music will live forever... https://t.co/qi4n0hiX0d

#JAMES HORNER composed the score to Volunteers, the movie that @tomhanks & I did in 1985. Beautiful score. Prayers 4 James and his family.

Incredibly saddened to hear about the loss of James Horner. I grew up loving his work. He leaves behind a spectacular musical legacy.

He wrote me a song that has such special meaning to me. We'll always remember you, James. RIP. #genius http://t.co/S4SJUuDUrW

I am so sad to hear about James Horner. He composed the most beautiful soundtrack of all time... http://t.co/Bg1OG28h9w

To work with James Horner was one of the biggest moments of my life. He was such a kind soul, I'm so saddened

RIP James Horner. Thank U for the beautiful music. We will miss what beautiful music was yet to come

To work with James Horner was one of the biggest moments of my life. He was such a kind soul, I'm so saddened

RIP James Horner. Thank U for the beautiful music. We will miss what beautiful music was yet to come