Adam Lambert, Lady Gaga, Ellen DeGeneres, Anderson Cooper and Chris Colfer were among the celebrities tweeting Thanksgiving messages.

“Saw 5 dolphins today in sunny Miami – one of the many things to b thankful for,” Rosie O'Donnell tweeted.

Singer Adam Lambert messaged: “Happy Turkey Day from me and members of the Glamily Band here in Hong Kong.”

“Happy Thanksgiving Twitter!” Lady Gaga tweeted to her more than 31 million followers. “I'm thankful for all of you, the messages of positivity u send me everyday lift me & make me stronger.”

“If it weren't for you, I wouldn't be able to help people in need,” talk show host Ellen DeGeneres messaged. “You're all a part of it, and I'm so grateful. Happy Thanksgiving.”

“Happy Thanksgiving!” Anderson Cooper tweeted to his more than 3 million followers. “So much to be grateful and thankful for on this day and every day.”

Glee's Chris Colfer added: “Happy Thanksgiving everyone! I'm thankful for the dishwasher, which helps me with my contribution every year. #NotAllowedToCook.”