On the Scene: Cassie, Teyana Taylor, Ne-Yo, Adrienne Bailon, Jesse McCartney, Teairra Mari, Justin Bieber

Cassie lent her support for a great cause at the I Love Africa send-off dinner for the Riviera to Africa Run for AIDS Awareness at the National Arts Club in New York City on Friday (April 23). Since deleting her Twitter page, we’ve heard little from the “Me & U” singer, who will release her next album on Bad Boy/Interscope Records.

Teyana Taylor and Ne-Yo

Teyana Taylor and Ne-Yo posed backstage at the Cavi Juniors Spring 2010 fashion show at Macy’s Herald Square in Manhattan.

Teyana Taylor and Adrienne Bailon

Teyana and Adrienne Bailon hit the runway, modeling the season’s latest fashions. Rico Love told Rap-Up.com that he is writing for the former Cheetah Girl’s Island Def Jam debut.

Jesse McCartney

Jesse McCartney, who’s in the studio prepping his new album, attended the Meet the Filmmaker: Producer’s Panel for his film Beware the Gonzo at the Apple Store SoHo.

Teairra Mari

Teairra Mari was looking like money in Miami Beach, where she chilled poolside with friends Quincy Brown, Hazel-E, and Eva Marcille.

Queen Latifah

Queen Latifah provided the soundtrack for the Fight for Children’s School Night 2010 fundraiser at the Ronald Reagan Building in Washington, D.C.

Justin Bieber

Justin Bieber was welcomed to Sydney, Australia, with a toy wombat, but the teen idol hoped to see the marsupial in real life during his visit Down Under.