Justin Bieber is back in fighting form, literally.
Although the Canadian crooner collapsed on stage in London on Thursday and was hospitalized, he is still planning to perform tonight for his last of four concerts at the O2 Arena.
Bieber confirmed the news in a Twitter spree Friday morning, in which he also ripped the paparazzi, who had been waiting outside his hotel and caused him to lose his temper.
"Ahhhhh! Rough morning. Trying to feel better for this show tonight but let the paps get the best of me," he wrote. "Not gonna let them get the best of me again. Gonna get focused on this show tonight. Adrenaline is high now. Gonna put it on the stage."
So what set off Bieber's latest Twitter rant? Well, it was all caught on video.
On Friday, the singer ran through a swarm of paparazzi and appeared to bump into a few photogs while making a dash to his awaiting car.
One photog yelled "f**k off back to America" and called Bieber "f**king little moron."
Bieber apparently heard what was said, because he opened the car door and said, “I’ll f**king beat the f**k out of you." The 19-year-old then lunged at photographers, but was restrained by his bodyguard.
Bieber’s drama-filled tour stop in London came to a head on Thursday when he suffered shortness of breath and fainted during his performance, a rep for the pop star confirmed to omg! on Thursday. He took a 20-minute break to get oxygen backstage (you'd figure the O2 has that covered!), then resumed the show. He was later taken to the hospital for an examination and looked okay to us in the shirtless photo he post for his 35 million Twitter fans later than night.
"Gettin better listening to Janice Joplin," he captioned the Instagram photo, which showed the smiling star with headphones on.
This wasn't the first time Bieber took ill while he while performing. In May, the singer suffered a concussion after walking into a glass wall during his concert in Paris.
This particular leg of the teen's "Believe" tour has been especially drama-filled. He stormed out of his circus-themed birthday party at a London club on March 1 after staffers refused entry to members of his entourage who were below the legal age of 18.
Then on Monday, he took the stage later than scheduled (somewhere between 40 minutes and two hours), which elicited boos from his loyal fans – as well as the parents who were hoping to get their kids home at a decent time on a school night.