Wiz Khalifa's Rolling Papers tour comes to Merriweather Post Pavilion Sunday afternoon (tickets still available), and his support is stacked with of-the-moment rappers such as Big K.R.I.T. and Mac Miller. Also on the bill are frequent Wiz collaborators and fellow weed enthusiasts Curren$y and Big Sean. The three — Wiz, Curren$y and Sean — have formed like a baked Voltron to create the stoned trinity of 2011 hip-hop, a supergroup of rappers with rabid fanbases and enough flows to put together a mixtape. Only Sean has hinted at an actual mixtape but the latest leak, "Dot Dot Dot," makes the project seem likely. "Dot Dot Dot" is perfect for a lazy, and for some, hazy Sunday drive to an outdoor concert venue. Just don't forget to keep an eye out for the cops.