Alicia Keys and Jay-Z's song 'Empire State of Mind' was a hit in 2009. When they performed it at the VMAs that year, they were joined by an unexpected guest: Lil Mama.

Jay-Z scolded Kanye West for his rude behavior at this year's MTV Video Music Awards after the rapper stormed the stage and interrupted Taylor Swift's acceptance speech.

"Lip Gloss" rapper Lil Mama discusses the infamous moment when she crashed Jay-Z's Video Music Awards performance.