Natalie Finn Thu Mar 27, 1:07 PM ET

Los Angeles (E! Online) - Pieces of Ashlee Simpson are going to be all over the mall this spring.  

To coincide with the April release of her third studio album, Bittersweet World, the 22-year-old pop star is taking a cue from her shoe-fashioning sis and designing a line of tops for retailer Wet Seal, the teen-favorite clothier announced Thursday. 

The collection, "inspired by Ashlee Simpson's personality, sense of style and album artwork," will launch in Wet Seal stores nationwide on April 22, according to the chain, which will also be rolling out the in-store and online promotional guns to tout both the album and the new shirts. 

"I was inspired by so many fun, wonderful things as I was recording Bittersweet World, and it's been great to carry through those inspirations into these new shirt designs," said Simpson. "I hope my fans love this album and rock out in these shirts!"

And just as you can pick up a Paul McCartney CD to go with your Starbucks latte, you'll be able to snag a Simpson disc along with a graphic tee and some skinny jeans. 

"Ashlee is a role model for our girl, and her fun and flirty sense of style is an inspiration for the line," Wet Seal CEO Ed Thomas said. "The goal was to partner with an icon and deliver affordable fashion, and Ashlee is an ideal partner for this." 

"Little Miss Obsessive," the first single off of Bittersweet World, was released digitally on March 11 and hit the airwaves a week later.