Forever 21 is on a designer collaboration roll! First up, Petro Zillia for Forever 21 hit stores today, a colorful, upbeat line from L.A.-based designer Nony Tochterman. On the other side of the spectrum (but also from L.A.) comes Rory Beca for Forever, which will arrive March 4th, 2011. Priced from just $5.80 to $32.80, Rory Beca for Forever 21 will include silky blouses, shirtdresses, at least one jumpsuit, relaxed cropped pants and more casual basics - pieces that are a bit more bohemian, laid-back and vintage-inspired. Rory Beca is more my personal taste but both collaborations are worth checking out. Which are you more excited to see?

Click through to see all the looks.

Here's the LC Lauren Conrad for Kohl's Spring 2011 lookbook, always a breath of fresh air to see LC's easy California style translated for the masses! The collection includes lots of breezy dresses, floral prints, pastel hues and ruffles, plus the requisite modern girl staples like a boyfriend blazer, fitted leather-look jacket and skinny jeans. Many of these items will be popping up in Kohl's stores and on kohls.com now through March; available in sizes 2-16, most items in this collection are priced under $60.

Click through to see all the looks. Can't wait to see them all in person! P.S. Stay tuned for debut photos of LC Lauren Conrad accessories and shoes!

Here's the Bisou Bisou for JCPenney Spring 2011 lookbook, giving us a refreshing glimpse at the trends we can hope to wear as soon as the weather warms. There are lots of voluminous, breezy tops paired with slim, fitted bottoms, classic feminine silhouettes like the pencil skirt, off-shoulder tops, colorful prints and safari influences. You'll begin seeing these styles now in JCPenney stores and online at jcp.com. The majority of the items by Bisou Bisou are priced below $50. I think the zebra print shirred waist dress ($39.99) is adorable, has that Michael Kors look for less.

Click through to view all the looks. Which ones stand out for you?

Modern Family actress Sofia Vergara is joining forces with Kmart to create an affordable fashion line to launch in about 800 Kmart stores starting in late August and early September.

The Sofia Vergara Signature Fashion Collection includes curve-hugging dresses, knit tops, jackets, sweaters and leggings priced from $16.99 to $59.99, as well as accessories such as handbags, shoes and jewelry priced from $9.99 to $49.99.

Colombian-born Vergara, 38, is a natural beauty who can make anything look good. I'll reserve judgment until I see these clothes in real life.

Click through to see more looks. Are you excited for this celebrity fashion line?

Nylon mag has a first look at Petro Zillia for Forever 21, the fast fashion retailer's latest designer collaboration with L.A. label House of Petro Zillia. "Bold colors, vivid detail, retro trends with modern twists. This is PETRO ZILLIA," reads the brand's bio. Petro Zillia was launched in 1996 by designer Nony Tochterman, who spent her formative years in Tel Aviv, Israel, and now resides in sunny L.A., where she was awarded the Moss Adams Fashion Innovator Award (MAFI). Celebrity fans of Petro Zillia include Paris Hilton, Lindsay Lohan, Scarlett Johansson, Mischa Barton, and Madonna to name a few. Most of the pieces look like cute, colorful loungewear to me (although I'm not sure that was their intention).

Update: Petro Zillia for Forever 21 will be available February 11th, 2011.

Click through to preview all the looks!