The former Idol contestant writes in a blog on his Web site dated Friday that "I obviously meant it as a colorful statement to imply that I did not enjoy what I heard." He also says he didn't mean it as "a 'slam' on Adam as a person."
He had blasted Lambert's take on the classic Johnny Cash tune as "contrived," "awful" and "slightly frightening." Aiken says he hopes Lambert can forgive him - but adds Lambert probably doesn't care about what he said.
Aiken lost out to Ruben Studdard in 2003. He's since released several albums, appeared on Broadway and publicly confirmed he's gay.