Blake Lively was very busy yesterday – appearing on Late Night with Jay Leno and then attending the premiere of her new film Green Lantern held at Grauman’s Chinese Theatre on Wednesday, June 15, 2011.

Blake, who doesn’t have a stylist, gave Jay a makeover. (see the video after the jump).  She also spoke about her experience with killer sharks and much more.

The Green Lantern, which opens in theaters this Friday, is about a “test pilot who is granted a mystical green ring that bestows him with otherworldly powers, as well as membership into an intergalactic squadron tasked with keeping peace within the universe.”

Blake plays Carol Ferris, the Vice President of Ferris Aircrafts, who hires Hal Jordan (Ryan Reynolds).