Dick Clark, Ryan Seacrest Dick Clark, Ryan Seacrest

Dick Clark wasn't just the host of American Bandstand or the face of New Year's Eve. He was an icon in the field of broadcasting, a household name, an avuncular figure and even the punch line for jokes about longevity. With his passing from a heart attack Wednesday, celebrities have taken to Twitter to celebrate his life and mourn his loss:

Dick Clark dies at age 82

Ryan Seacrest: I am deeply saddened by the loss of my dear friend Dick Clark. He has truly been one of the greatest influences in my life. My thoughts and prayers are with his family.

Larry King: Dick Clark was a great friend, true legend, & a master journalist. Nobody did what he did better. It was a pleasure to be in his company.

Anderson Cooper: What a career Dick Clark had! What a life! My thoughts are with his family and friends.

Neil Patrick Harris: For ever, Dick Clark... So long.

David Boreanaz: My father did a lot of work with Dick Clark @Jim_Gardner. He remembers the moments at AM/Philadelphia and the days at WOLF-AM, SYR, NY.

See other celebrities who died this year 

Denise Richards: My heart goes out to Dick Clark's family and loved ones.... we lost a legend.. #RIPDickClark

Joan Rivers: Very sad to hear about Dick Clark. What a great life. What a great career. Relevant until the end. He will be missed!

Snoop Dogg: REST IN PEACE to the DICK CLARK!! U were pioneer n a good man!! Thank u sir

Al Roker: I got to meet him many times. I was meeting w/Dick in his office as the OJ verdict was announced. It was surreal

Mario Lopez: Just heard the news of Dick Clark... It was truly an honor to have worked with him, learn from him and to be able to call him a friend. He was a great man and an even better friend. The word legend is thrown around a lot, but it's never more appropriate than when used in describing Mr. Clark. He was a real inspiration & influence in my life. I will dearly miss my friend... Rest well DC

Marlee Matlin: So sorry about passing of Dick Clark. A man with the gift of discovering talented musicians he also was a consummate producer/lovely man RIP

Questlove: Dick Clark. A Great Philadelphian. Thank You Very Much! (later) Guys I'm aware Clark is [from] NY, but the show that brought him national attention "the Philadelphia way" American Bandstand makes him one of us.

See photos of Dick Clark through the years

Andy Cohen: RIP Dick Clark! The broadcasting legend will remain a teenager in our memory forever. #Bandstand

Donnie Wahlberg: Very saddened by the loss of a true legend... Mr Dick Clark. #ripDC

Seth Green: So saddened by Dick Clark's passing- an innovator, a legend, a man who believed in the greatness of humans. #ThankYou

Yvette Nicole Brown: Heartbroken :( #NothingElseToSay

"Weird" Al Yankovic: Such sad news. RIP Dick Clark. http://twitpic.com/9bd5uf

Chris Harrison: Just heard the sad news about the passing of Dick Clark. A legend in our game!

Holly Robinson Peete: #RIP Dick Clark. Always so nice Employed me many times. I will miss you Dick. Prayers to Kari and the family #Legend

Russell Simmons: Dick Clark was eternally young. No matter what culturally phenomenon was happening, he always embraced it. RIP... http://bit.ly/JI4pMr

Wayne Brady: RIP Dick Clark. Being able to do the New Year's special w him was an honor. A TV pioneer and extraordinary business man. God Bless.

Shawn Ryan (The Shield creator): Hope Dick Clark's somewhere spinning a hip new single for the kids and ringing in the New Year.