Scarlett Johansson and Ben Stiller have won the 2007 Hasty Pudding Awards. The prestigious prizes are given by Harvard University student drama group Hasty Pudding Theatricals to performers who have made a "lasting and impressive contribution to the world of entertainment".

Scarlett - who will parade through Cambridge, Massachusetts, on February 15 - will attend a feast held in her honor where she will receive the "Pudding Pot." The same ceremony will be held for Night at the Museum star Ben on February 23.

Hasty Pudding Theatricals is the oldest undergraduate drama group in the US and the award is considered a great honor. Last year's winners were Halle Berry and Richard Gere.

Meanwhile, Scarlett spent last weekend partying in Las Vegas with Selma Blair. The pair - who co-starred in In Good Company - ate at Treasure Island's sushi restaurant Social House on Saturday night before enjoying Cirque de Soleil show 'Mystére'. Scarlett, 22, and Selma, 34, also partied at Caesar's Palace's nightclub PURE on Friday and Saturday night.

The sexy twosome hired a private craps table at 3am on Sunday morning at Caesar's Palace and gambled until the early hours. Scarlett is thought to be newly single after splitting from Josh Hartnett, while Selma recently finalized her divorce from her husband of three years, musician Ahmet Zappa.