Bradley Cooper. 2 June 2009, Hollywood, CA. The Hangover Premiere

Bradley Cooper. 2 June 2009, Hollywood, CA. The Hangover Premiere held at the Chinese Theatre. Photo Credit: Giulio Marcocchi/Sipa Press./Hangover gm.088/0906030753 Stock Photo - Alamy

Bradley Cooper in Dolce&Gabbana at the “Guardians of the Galaxy” LA Premiere - Tom + Lorenzo

Bradley Cooper Has A Hangover: Photo 1963591, Bradley Cooper, MTV Movie Awards 2009 Photos

Bradley Cooper Los Angeles Premiere of 'The Hangover Part II' held at Grauman's Chinese Theatre - Arrivals Hollywood, California - 19.05.11 Stock Photo - Alamy

Bradley Cooper Los Angeles Premiere of 'The Hangover Part II' held at Grauman's Chinese Theatre - Arrivals Hollywood, California - 19.05.11 Stock Photo - Alamy

Bradley Cooper At Arrivals For Hangover Premiere, Grauman'S Chinese Theatre, Los Angeles, Ca June 2, 2009. Photo By Dee CerconeEverett Collection Celebrity - Item # VAREVC0902JNEDX043 - Posterazzi

Bradley Cooper At The Los Angeles Premiere Of The Hangover Part III Held At The Mann Village Theater In Los Angeles, United States, 200513. Stock Photo, Picture and Royalty Free Image. Image 58860175.

Bradley Cooper Through the Years: From Guest Star to Leading Man

Bradley Cooper and Will Arnett Starring in 'Is This Thing On?