An Internet radio host in Charlotte, North Carolina claims that JUSTIN BIEBER was rude and insulted her when she tried to work out at a local gym.
--Colette Harrington wrote an angry post on her website Tuesday, saying Justin was working out with a trainer and one of his backup dancers, when she approached and introduced herself as a radio host.
--Justin replied, quote, "Good for you." Then she asked if he would take a picture with her, and he said no. Colette says she was cool with that, and just went ahead with her workout.
--Colette says she counts her reps out loud . . . and Justin and one of the other guys started mocking her by counting out loud with her, and then shouting "Shut the [eff] up" every time she hit 20.
--She said, quote, "I [was] ready to punch one of them in the face or cry. I could not decide which since I felt like I was back in grade school and being made fun of."
--She also said the two guys were talking about spitting in people's drinks, and at one point, Justin guzzled a bottle of Gatorade and then spit in it.
--Colette says she left the room for a while, then came back in when they left. And to add insult to injury, she accidentally took a drink out of the bottle Justin had spit in.
--In her Facebook post she threatened to sell the bottle on eBay . . . but she later claimed she wasn't serious about that. (--You can read her post here.)
--Justin's rep admits that Justin and his trainer were at the gym . . . and that they were making snide comments. But he says they were ripping on EACH OTHER, and NOT on Colette.