Justin Timberlake's got a UFC superstar ready to fight for his freedom ... with Conor McGregor throwing his support behind the singer following his DWI arrest.
Notorious reacted to the "Selfish" crooner's legal troubles roughly 24 hours after the news broke on Tuesday ... and he's certainly not turning his back on Timberlake over the matter.
Of course, there is a bit of irony in McGregor showing love for someone who just got out the slammer .