Kim Kardashian, Kate Beckinsale, Zoe Saldana, Olivia Wilde, Chris Rock and newly-engaged Channing Tatum and Zoe Kravitz bring serious star power to Leonardo DiCaprio's 49th birthday bash as they celebrate Titanic star in Beverly Hills

Leonardo DiCaprio threw a 49th birthday party of Titanic proportions on Saturday night, drawing an A-list crowd from corners of Hollywood - from movies, music and even reality television. Kim Kardashian was among the celebrities attending the Titanic star's birthday bash in Beverly Hills on Saturday evening. The 43-year-old icon was spotted departing the bash wearing a sleeveless black outfit and with her face flawlessly done-up. Leonardo managed to avoid being photographed but was joined inside by his new girlfriend Vittoria Ceretti, 25, and the pair packed on the PDA and were 'affectionate and kissing throughout the night,' according to an insider.