March is that weird "limbo" time of year, where it's warm one day and cold the next – and the current celebrity fashion trends are definitely reflecting that!

This week we've noticed different celebs handling the indecisive March weather in different ways – some stuck with belted spring jackets, some were defiant against the lingering chill in the air and sported short, patterned dresses, and some opted for a mix of the two, pairing spring clothes with winter accessories.

Check out how stars such as Reese Witherspoon, Katherine Heigl, and Zac Efron used fashion to combat the craziness of almost-spring after the jump!

It's Valentine's Day and whether you're coupled or single, there is one way to get into the romantic spirit AND be on-trend all at once: By wearing PINK.

Pink has been a hot color to wear this winter and was all over the runways for the 2012 spring collections. So naturally, Hollywood style icons like Leighton Meester, Emmy Rossum, Lauren Conrad, and Sarah Jessica Parker have been picking up on it. And the styles aren't just romantic dresses -- but pants, scarves, coats and even hair (ahem, Ms. Minaj).

So throw on your rose-colored glasses and take a look at how to rock the romantic trend!

Looks like Michelle Williams has some competition as the new Marilyn Monroe! Of course, we know no one could EVER replace to icon that Monroe was, but by the looks of it, Blake Livelymay be trying!

On the 100th episode of Gossip Girl, a dream sequence shows Serena taking on Marilyn’s famous tune Diamonds Are A Girl’s Best Friend, pink dress and super blonde hair and all!

While this is all going on, Blair (Leighton Meester) is channeling her old Hollywood idol Audrey Hepburn as well!