"Bikini Girl" -- Half-Naked Before "Idol"

1/14/2009 6:50 AM PST BY TMZ STAFF
"American Idol" Bikini Girl Katrina Darrell definitely made an impression last night, and judging by her modeling reel over at LovinLife Creative Media, one thing's for sure -- the skank bit is no act.

The slutty shtick doesn't stop there though -- girl's also a part of a clothing line so trashy, even Shauna Sand wouldn't be caught dead in 'em.