Chris Brown reportedly attended Day 2 of Rihanna and Eminem's "The Monster" joint tour, fueling rumors that he is trying to get his ex-girlfriend back.

Brown was apparently backstage at the Rose Bowl stadium in Pasadena, California on Friday night. However, he and RiRi did not exchange any words. "Chris came backstage and he was very loud, because he obviously wanted to be noticed," a source revealed to Urban Islandz. "But Rihanna didn't even look at him, she was just about her business performing with Eminem for their fans and taking photos with fans."

As a result, the "Loyal" hitmaker ended up spending most of his time at the event with other celebrities, including his collaborator/rapper Tyga. Also, fans noticed Brown and took pictures of him -- one of them uploaded a photo on Twitter, showing him getting very close to someone who appears to be Rihanna.

The R&B star undoubtedly was at the Barbadian beauty's concert on the weekend, as he took to his Instagram account to share a snap of "The Monster" tour logo. The painting featured the same mash-up of the "Diamonds" singer's eyes, werewolf ears and cartoon vampire mouth that is on the tour merchandise created by London-based streetwear brand Trapstar. He has since deleted the post.

Another source recently told the same website that Chris Brown has been trying to rekindle relationship with Rihanna since his release from jail, especially after dumping his other on-and-off-again girlfriend Karrueche Tran. "He has been texting her nonstop and blowing up her phone, begging to meet with her," the source claimed. "But surprising this time, she is holding her ground and told him 'no.'"

"She basically told him straight up she don't want him or his basic chick anywhere near her. Robyn [Rihanna] is in a better place now, she is more content, and focused on herself and her career," the source added. "RiRi will always have love for Chris Brown but she accepts that they can't be together, she is way too mature for him."