Steamy! Adam Levine flashes his bare butt in new video

Still groggy on this fine Sunday morning?

Thanks to Adam Levine, we're wide awake. The Maroon 5 frontman has dropped a new video -- not to mention his pants!

In the opening scene for This Summer's Gonna Hurt Like A (expletive), we see him emerging from the bathroom wrapping a towel around his waist -- only to drop it just moments later, revealing his bare bottom.

He made the

last night on Twitter: "Oops… We dropped our new video…"

Since the lyrics are less than family-friendly, we can't show it to you here, but go ahead and click

for Levine and all of his backside's glory.

Here's a clean, lyrics-only version:

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