Paid PostPosted on Mar 28, 2011Panic! At The Disco Perform ‘The Ballad Of Mona Lisa’I won't lie.by MTVBrand PublisherLinkFacebookPinterestTwitterMail Panic! At The Disco Perform ‘The Ballad Of Mona Lisa’ buzzworthy.mtv.com I'm screaming on the inside like those prepubescent girls in the crowd.