Lindsay's 'Tonight Show' Standing O

4/27/2011 6:30 AM PDT

Lindsay Lohan Full Interview with Jay Leno on The Tonight Show Gets a Standing Ovation

Lindsay Lohan won the hearts and minds of 500 people Tuesday ... albeit not a jury of her peers -- thanks to a heartfelt mea culpa on Jay Leno's "The Tonight Show."

Lindsay got a standing ovation shortly before admitting no one but herself is to blame for the predicament that triggered a 120 day jail sentence.

After about 5 minutes, Jay and Lindsay did a bit of full disclosure ... revealing they have something -- actually someone -- in common.