What is it with nipples at the Super Bowl?

During Sunday's halftime show, Maroon 5's Adam Levine decided to take his shirt off for the crowd, because something was necessary to liven up the musical equivalent of a jar of mayonnaise.

The problem? The Super Bowl halftime show has a storied history — with all the pearl clutching over Janet Jackson's nipple more than a decade ago. Justin Timberlake, who exposed Janet's nipple in 2004, returned to the Super Bowl last year and fans were quick to slam him. And now it's Levine's turn to feel the heat.

Oh but we can see Adam Levine’s nipples @FCC — Ira (@ira) February 4, 2019

I guess white guy nipples are cool on CBS. 🤷🏽‍♀️ #SuperBowl2019 — LeslieMac 🖤 (@LeslieMac) February 4, 2019

How come Adam Levine gets to show his nipples and Janet Jackson doesn’t — Vivian Ho (@VivianHo) February 4, 2019

Super Bowl halftime nipple rules feel inconsistent — Katie Nolan (@katienolan) February 4, 2019

Why can Adam show his nipples but Janet can’t? 😉 — Lisa Guerrero 💃🏽 (@4lisaguerrero) February 4, 2019

Oh so dudes can show nipple on the super bowl halftime show ok — Elika Sadeghi (@steakNstiffarms) February 4, 2019

Janet Jackson watching Adam Levine performing topless #SuperBowl pic.twitter.com/s7vgpSAmxE — nyoldman (@NYDoorman) February 4, 2019

I thought they outlawed nipples on the halftime show — Dan Wetzel (@DanWetzel) February 4, 2019

YOU’RE TELLING ME JAMET JACKSON CANT SHOW ONE NIPPLE BUT ADAM LEVINE CAN BE SHIRTLESS? — Ashly Perez (@itsashlyperez) February 4, 2019

Maybe we should just bring back the Elvis impersonator magician from Super Bowl XXIII.