Janet Jackson

The two haven't been seen together publicly since 2009.

“What if Miley Cyrus was never cast for ‘Hannah Montana’?”

Michael allegedly often called her a "pig, horse, slut, hog or cow."

JT is apparently afraid of this 'Janet' documentary.

Madonna or Janet Jackson? Twitter users weigh in.

Justin allegedly wanted to outdo Britney Spears.

The pop star admitted he "failed" both women.

Celebrities are getting in on the #10YearChallenge fun, sharing old photos of themselves.

Bruno Mars handed off the award to Jackson, a distinction only previously given to a handful of industry artists.

From Justin and Janet to Bruno and Beyonce, these 10 Super Bowl Halftime Show collabs were the most memorable.