It seems as though every time NiNi pairs someone up with each other for a tour together, tension forms. We saw it happen with Keri and Ke$ha, Ri Ri and Ci Ci and OMG Girlz and Jordan Sparks, now its Selena and Kat. Kat is the one artist who NiNi is very proud of because not only is she a great artist and really passionate about her work, she literally NEVER gets in trouble or pisses off the boss, in fact besides her music you don't even hear much about her. BUT today that changed as her and Selena started their first show in San Diego CA and first they couldn't agree on the costumes, then they couldn't agree on the routine, then the schedule it just went on and on until Selena took her frustration out on Twitter posting "I wanna ask y'all if anyone was dealing with an obnoxious self centered person would you fuck her up or walk away, well I'm leaning towards fuck her up honestly!" Kat responded saying "You think I don't know who you're talking about barbie? If that's what you feel you CAN do then you can come TRY to, but honey don't hurt yourself because I really doubt that you CAN! Then they left Twitter alone, guess that got too boring for them lol and they did their show killed it but afterwards they had an argument backstage that turned into a fight. Security says that Selena started the fight by calling Kat a failed washed up actress turned suckish musician which offended her and they began arguing and sources say that Selena took the first swing and missed then they threw down with Kat coming out as the winner. Now its said that Selena's family is after Kat. Neither artist has spoken up on their fight, but we feel that their tour is now over. UPDATE* Sources say that Selena approached NiNi pissed off yelling saying "Either you get rid of her or I quit!!!!" NiNi then said "Well quit" which shocked Selena and she walked away with an attitude. Does this mean that Selena is no longer apart of the PSR crew? Well that's what we are trying to find out right now and we will let you know. In other news, NiNi has pushed up her new video for tomorrow! This should be very exciting. BET has confirmed that her video will be airing at 6pm tomorrow, so make sure you check that out, but if you miss it I'll be posting a link for you to check it out!