Spring fashion has officially hit the world of celebrity. This week the ladies of Hollywood kept things colorful, and extra glamorous. Topping our list, Selena Gomez was a ray of chic sunshine while attending the "13 Reasons Why" premiere in L.A. This marigold bubble dress was one of our favorites from Oscar de la Renta's Fall 2017 collection, and Selena wears it well. Jennifer Lopez had our hearts a flutter in a butterfly print mini dress by Valentino while out in the Big Apple. JLO accessorized her look with a Christian Louboutin bag, an umbrella, and new beau A-Rod. Victoria Justice had a major pink moment in a fitted Styland suit at the GLAAD Rising Stars Luncheon. Victoria has quickly become one of our favorite young starlets, as she always embraces a moment to look fabulous. Jessica Chastain added a very welcomed pop of color to her polka dot print Givenchy dress, pairing the stylish frock with a pair of canary Louboutin pumps. Usually one to stick to her beloved black looks, Charlize Theron pleasantly surprised us when she took a floral turn. The Oscar winning beauty donned a vibrant violet hued design by Gucci while attending CinemaCon. It's not often we see Charlize in prints, especially this colorful so we are basking in the change of pace. The weather may be gloomy around these parts lately, but spring is very much in the air. To see all of our favorite looks of the week, check out our full Best Dressed gallery above.