Source: Bang Showbiz NewsSelena Gomez allegedly spent an evening flirting with Josh Hutcherson at a party on Sunday night before they left the bash together.The newly single 20-year-old beauty - who split from her on/off boyfriend of two years Justin Bieber this month - was seen dancing with the 20-year-old 'The Hunger Games' star at a Golden Globe Awards afterparty at the Beverly Hilton Hotel on Sunday night (13.01.13) before later leaving the event together.A source told gossip website HollywoodLife.com: "She was dancing and flirting with Josh."The insider claims that Selena seemed to have the approval of her good pal Vanessa Hudgens, who she attended the bash with and who previously dated Josh.The eyewitness revealed: "[Vanessa] was there to witness it. Selena was dancing and having lots of fun and flirting with Josh. Vanessa needed to go to the bathroom and asked me where the restroom was, and I told them both [Vanessa & Selena] and they went. Josh followed them, and Selena and Josh left the Beverly Hilton together. Justin is in no way on her mind whatsoever."Selena is said to have broken up with Justin, 18, because he was too needy for her.A source previously said: "Justin is super needy and can be a big baby around Selena. It's hard for him to make real friends because he likes the temporary attention of strangers, but didn't see how it hurt Selena."Selena didn't feel Justin was respectful of their relationship. She was constantly catching him in positions with other girls that would make her uncomfortable. She would get super jealous."The couple broke up shortly after holidaying in Mexico where they had planned to ring in the New Year together but got into a huge argument on December 30 after she allegedly found text messages from other girls on his phone.She then fled back to the US.A source said that Justin reportedly told her before she left: "Don't let the door hit you on the way out!"