Uggie the dog's silent movie The Artist has won five Oscars.
The awards included best picture, best director and best actor for French star Jean Dujardin.
But Uggie managed to steal the spotlight from his co-stars with an unexpected appearance on stage and even got a special thank you from director Michel Hazanavicius.
It's more than 80 years since a silent movie has won an Oscar in Hollywood.
The 3D movie Hugo also had a big night, winning awards for its cinematography and art direction as well as three technical awards.
Other winners included Rango, which won best animation and features the voice of Johnny Depp as a chameleon.
And the Oscar for best original song went to Kermit and friends for the Muppets.
Steven Spielberg's film, War Horse was up for six awards but didn't manage to take any home.
Best Picture - The Artist
Best Director - Michel Hazanavicius, The Artist
Best Actor - Jean Dujardin, The Artist
Best Actress - Meryl Streep, The Iron Lady.
Best Supporting Actor- Christopher Plummer, Beginners
Best Supporting Actress - Octavia Spencer, The Help
Best Animated feature - Rango
Best Cinematography - Hugo
Best Original Song - 'Man or Muppet' from The Muppets