Macy's designer collaborations are still going strong and its latest team-up is sure to leave a lot of fashion girls excited. Up next to design a collection for Macy"s Impulse line is Alberta Ferretti. A favorite amongst the Hollywood red-carpet crowd — her signature designs have been worn by the likes of Eva Mendes, Camilla Belle, Lea Michele, and Drew Barrymore to name a few — Ferretti is known for her gorgeous diaphanous red-carpet-worthy gowns, and a line for Macy's sounds promising. “The collection I created is fresh and bright, featuring light summer clothing that evokes the spirit of my beautiful country and is at the same time true to my style,” said Ferretti. The 30-piece Alberta Ferretti for Macy's collection , slated to launch April 17, will include a range of feminine dresses, peasant blouses, garden party looks, and floral prints made out of chiffon and voile. Check out the slideshow to see more sketches, plus looks from her latest Spring '12 line to get you excited.