See how Ariana, Gaga, Nirvana, Backstreet Boys, P!nk, 50 Cent, Maroon 5 and just Adam Levine marked this week in history for pop music from the past 30 years.
See how Nirvana, Backstreet Boys, P!nk, 50 Cent, Lady Gaga, Adam Levine and Ariana Grande marked this week in history for pop music from the past 30 years.