Making the most of her post-concert evening, Lady Gaga showed up at the Chateau Marmont in West Hollywood last night (January 20).

Joined by Evan Ross, the “Born This Way” songstress seemed a bit out of it as she exited her car. And on the seat next to her sat what appeared to be a medical marijuana prescription bag.

Earlier in the weekend, Gaga and a bunch of friends paid a visit to the Shamrock Tattoo Shop where she may or may not have scored some new body art.

Meanwhile, Mother Monster is said to be gearing up for a very special performance for President Barack Obama’s staffers as part of his Inaugural celebrations this week.