'American Idol' Finalist Kevin Covais -- From Chicken Little ... To Slim Shady [Video]

"American Idol" finalist Kevin Covais got eliminated from the show singing Doris Day, but his karaoke repertoire is a lot more modern ... and involves rapping instead of singing.

The 23-year-old -- who took "Idol" by storm as a teenager in 2006 -- grabbed the mic at the Social Sports Kitchen in New York City the other day and channeled his inner white boy rapper for a rendition of Eminem's "Love the Way You Lie."

Covais tells TMZ, "I was having fun with friends rapping at karaoke. And for the record, I think I did a pretty good job with this. I spit hot fire."