Demi Lovato looked especially hot when she flashed some under boob while hitting the red carpet at Logo's Trailblazers event in New York City.

According to E! News, the 21-year-old "Neon Lights" wore a super-sexy dress that showed off lots of cleavage.

Wilmer Valderrama's girlfriend was all smiles when she posed for pictures in the sheer outfit that featured peekaboo panels that showed off her breasts and under boobs.

The dress also had a plunging V-panel neckline along with cutouts that showed a lot of flesh thinks to the skin-tight ensemble that hugged Demi Lovato's body in all the right places.

The "Let It Go" songstress made her outfit pop with the addition of bright pink lipstick, a golden tan and colorful purple highlights in her hair.

While Lovato looked stunning and was all smiles on the red carpet during the event, she took to Twitter yesterday to rant about the annoying and very rude paparazzi who harassed her on Monday.

She tweeted, "When are paparazzi gonna learn? If you're respectful to me, I'll be respectful back. Why does it have to be a war of celebs against paps?"

"Of course if you yell horrible things, I'm not gonna work with you. I'll pose if you are respectful and not being bullies."

"I wanted to stop for my fans today/tonight really bad because I love you so much but I can't deal with how mean those paps are..."

She went on to say, "I always try to stop because I appreciate every single one of you, so if I don't get to you please know I'm sorry and I love you."

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