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
Bruno Mars is out of this world!
The Treasure singer made the 2013 VMAs stage sparkle with his new single Gorilla!
Ch-ch-check out the video (above) to see Bruno and his boys make the MTV stage their own!