It wasn't the greatest American Idol audition of Robbie Carrico's life last night.

The semifinalist performed "One is the Loneliest Number" by Three Dog Night and was told by Simon Cowell that he's "not quite sure yet whether [Robbie is] very comfortable in this rock thing or whether [he's] a pop singer."

Ouch. But it actually got worse, as Ryan Seacrest told Carrico that he may be dressed "like a rocker, but kind of looks like Justin Timberlake!"

A compliment, right? Except that both Carrico and Timberlake both have dated Britney Spears. Awkward alert, folks!