Selena Gomez promises her fourth album will be her biggest yet.

The star explained that while she has filmed three movies this year, she missed recording new music.

The 19-year-old wants to take her time with her next record to make it more personal.

However, the pretty brunette added that she won't spill the beans on her private life, including her relationship with Justin Bieber.

"I think this is going to be the biggest one for me personally. I want to be able to write about things I've never talked about before and tell a story with this album because I've never actually had time to go in and do that. I've never worked on a song for more than two days,' she told E! Online. "It's not going to be necessarily, 'Here's my tell-all'. It's going to be more of something that people could say, 'It could be that or it could be this or it could that.' At the end of the day I only make my music because I want it be really fun and if I could have people dance to it, relate to it, have a good time, that's all I want."

Selena also revealed she is desperate to see Katy Perry's upcoming movie Part of Me: 3D.

Although she didn't receive an invite, she phoned up organisers and asked if she could attend today's Los Angeles premiere.

"I called and was like, 'Can I please come? I want to see this movie so bad,'" she explained.