Justin Bieber doesn't care if you have a problem with him wearing a Cavs jersey one day and a pair of Warriors' shorts or a Kevin Durant jersey the next day. 

The Biebs went on a quick twitter rant last night defending his right to rock jerseys from multiple sports teams, including the ones who are playing the best at any given time. 

Recently, Bieber posted an IG photo of himself wearing a Pittsburgh Penguins jersey which had people once again calling him a bandwagon fan, and likely contributed to him pleading his case last night.

In short, if he likes the jersey he's going to throw it on because he doesn't know enough about sports to have a valid opinion anyway. 

Check out his comments below.