Selena Gomez ignored Justin Bieber.

The 'Heart Wants What It Wants' hitmaker was reportedly too busy with her pals and Ed Sheeran to ''engage'' with the 'Boyfriend' singer when they found themselves attending the same party.

A source told the New York Post's Page Six column: ''Justin and Selena saw each other and didn't engage whatsoever. Selena was too busy enjoying herself with Ed and her girlfriends.

''Selena came with Ed and left with him shortly after Justin arrived. It was obvious she wanted to avoid any drama.''

The party - which was thrown by Justin's manager Scooter Braun - took place at The Nice Guy in Los Angeles and was as a celebration for Tori Kelly on the release of her new album, 'Unbreakable Smile'.

During the evening, guest Meghan Trainor reportedly took to the stage for a spontaneous performance of 'All About That Bass' whilst other partygoers included Cody Simpson and Ashley Benson.

Meanwhile, Selena's vocal coach Stevie Mackey recently revealed the star had used her split from Justin as inspiration for her new music.

He said: ''She doesn't mention him directly. But one could deduce that she is [singing about him].

''Most artists sing about their present or past relationships in their music. Selena's no different.''