VIDEO: Lady Gaga Calls Sixth-Grader Greyson on 'Ellen'

Greyson Michael Chance's cover of "Paparazzi" is a hit on YouTube, but also with Lady Gaga herself! Greyson received a surprise phone call from his musical inspiration while chatting with Ellen DeGeneres!

OK! VIDEO: SIXTH-GRADER UPSTAGES JUSTIN BIEBER & LADY GAGA

"Hi, Miss Gaga," Greyson, a 12 -year-old sixth grader answered her call on Ellen Degeneres.

"Greyson, you're so sweet and so talented, and I was so excited that you covered 'Paparazzi,'" Gaga told him. "Everyone loves you so much. Just keep following your dreams and work really hard, and stay away from girls and be focused."