Mumbai: Bollywood actress Katrina Kaif, who turned a year older on Saturday, has marked her debut on social-networking site Facebook. Katrina, who already has over 3,000,000 total page likes as of now, has put up a beautiful black and white photograph of herself as her display picture and her cover photo shows her standing against the backdrop of a beach. The "Fitoor" star also shared a video of herself from her beautiful sea-facing apartment and captioned it "Lets do this!". She also pinned this video on the top of her timeline. In the 27-second-long video, Katrina, who looked gorgeous in a white t-shirt and ripped-denim shorts, can be heard saying: "So, I'm here. Be nice and yeah, It's my birthday so, you can wish me today." On the work front, Katrina will next be seen sharing screen space with Sidharth Malhotra in "Baar Baar Dekho".