"American Idol" star Clay Aiken has ditched former Secretary of State Hillary Clinton in favor of Vice President Joe Biden as his presidential choice for 2016.

"To some extent, I kind of feel like Secretary Clinton is a leaky boat at this point and that concerns me as a Democrat," Aiken said.

Aiken told CNN that while he has "nothing but respect" for Clinton," he worries that "a lot of (moderates) have negative feelings towards (her)."

"I'll get on a leaky boat going in the right direction before I'll get on a strong boat going in the wrong direction," Aiken said, "But I really want a strong boat next year on the Democratic side and I think Joe Biden is a better candidate."

Aiken described Clinton as "stiff" and "scripted."

"@HillaryClinton, I love you. But why are you the stiffest and most scripted looking person in this video? #loosenup," Aiken tweeted.

Aiken also praised some of the presidential candidates' "moments of authenticity."

"If you look at the person who has said more things that would be considered gaffes than anybody else -- Donald Trump -- seriously, and he's at the top of the pack," Aiken said. "I don't think gaffes are a liability. I don't think they should be called gaffes."

The musician and former congressional candidate had some positive words for Donald Trump.

"I'm a friend of his. I like him as a person. He's always been very kind to me except for when he made me lose on 'The Apprentice,'" Aiken joked of Trump. "But he's a good guy and I certainly think people are mistaken if they don't take him seriously and we see that in the poll numbers."