Celebrate high times - come on!
We're guessing Rihanna is enjoying her Labor Day weekend if these videos are any indication!
In fact - she's having a ganja old time, ha!
Watch Rihanna getting her party on down
Good golly, Howie Mandel…
We know he's been working on his fitness…
But DAYUM, Mr. Mandel looks great for 58!
The America's Got Talent judge decided to take it all off on Monday night's show — joining an auditioning male dance review on stage!
Ch-ch-check out the Rock Hard Revue and Howie's moves in the video (above)!