After pop icon Justin Bieber changed his handle on Instagram from the original Bieber to "Bizzle," members of the band One Direction have been posting mocking remarks on their Twitter profile. Meanwhile, Bieber's ex-girlfriend, Selena Gomez has been seen on a night out with another One Directions member, Niall Horan.

As far as Bieber's switch to Bizzle goes, many comment that it may be linked to the singer, 19, posting Instagram photos with several major players in the hip-hop world. Photos with P. Diddy, Rick Ross, and T.I. appeared on his Instagram page before the name change. The change followed several days after the YouTube phenomenon and singer of "Boyfriend," was photographed working with Jermaine Dupri, Stalley, Walle and P. Diddy. These photos were taken in Atlanta.

Although there was not a lot of outright criticism of the move, the two singers of One Direction, Liam Payne and Louis Tomlinson, began tweeting what one source says are taunts or mean-spirited remarks aimed at the multi-platinum album seller, with puns of the recent name change like "Fizzle," "Shizle," and "Grizzle."

The source recently revealed to Hollywood Life:

"Yes, that was all about Justin. They're on Team Selena because they've heard all the stories from her friends and have gotten a really bad impression of Justin. Selena doesn't talk trash about Justin but her friends aren't shy, they don't hold back.

Justin's whole name change is a huge joke, so many people laugh about it and how hard he's trying to act - Liam and Louis just decided to do it a little more publicly."

Meanwhile, a picture of Selena Gomez and Niall Horan, has recently been posted online by Jessy Barnett, a fan who was also in the photo. Horan, a One Direction member, and Gomez, single artist and Justin Bieber's ex-girlfriend, had reportedly spent the night out in London, fueling the rumors that the two may be headed for a serious relationship somewhere down the line.