Kristen Cavallari hosts ‘UNITE Unveiled: Gen Art’s Fresh Faces In Fashion’ last night in Los Angeles along with:

• Gretchen Rossi
• Slade Smiley
• Cheryl Burke
• Derek Hough
• Kelly Monaco
• Tila Tequila
• Lisa Edelstein

Kristin revealed to Ryan Seacrest yesterday that she and John Mayer are not an item despite rumours and in fact she declined his request to take her out:

“I just feel like I don’t need to be another notch on his belt,”"I think he’s a really nice guy…”

Ouch.  She must have made quite the impression given they had only met for 5 minutes one time.  I guess John Mayer and his belt know what they want.

Pictures after the break

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Photos:  WENN.com