What's the saying? "Hell hath no fury like a woman scorned." Looks like Justin Bieber wasn't the best boyfriend and Selena wants to tell you all about it through her music!

A source close to Selena spilled details about her new music:

“Justin was so mean to Selena that she can’t wait to spill all the s**t about him in her new songs. All his flirting and all his…bulls**t are on the table. Her fans will be shocked about how much of a bada** she can be when she’s out for revenge.”

Do you think she should ask Taylor Swift for tips???