Rihanna to Chris Brown I'll Ride with You NO MATTER WHAT

Hours after Chris Brown was accused of cheating the system, he got some serious support from Rihanna ... who rode shotgun with the singer following a recording session in L.A.. The two were pictured leaving the L.A. studio together around 4:30 AM ... following an angry statement from Brown in which he said his life is PURE HELL.

We broke the story ... prosecutors believe Brown LIED about doing community service -- and could face serious jail time for allegedly participating in a conspiracy to dupe authorities. But last night, Brown reportedly took to Instagram to unload about the situation ... telling his fans he can't relax because the stories about his life are constantly being covered on TV, radio and everything else. Brown's frustrations are obvious -- "Im wise I can handle the hate but enough is enough, yo!!" He continued ... "Im a human being and I honestly think I deserve respect Im sick of being accused ... Im tired yall Just don't understand Ive been going through this sh*t since I was 19 years old .. You cant sit here and tell me to calm down, when am I gonna get a positive outcome out of anything I do?"