Name the Artist: If I Could Turn Back Time?

Questions

MTV: The female who won the most MTV VMA's in 1990?

MTV: This cartoon started off showing Beavis & Butt-head before their cartoon.?

MTV: This event is held annually that honors the year's best videos?

MTV: This former video jockey can now be seen in skin-care commercials?

MTV: This show features two absurd, cartoon teenagers with the laugh, "Huh huh"?