You might not have heard of Left Handers Day, but it is celebrated annually on 13 August to raise awareness of the struggles with right-handed tools and the "everyday issues that lefties face in world designed for right-handers". To mark the day, here are 20 proud left-handed celebrities.

spike lee
Spike Lee (Getty)
David Bowie
David Bowie (Getty)
Whoopi Goldberg
Whoopi Goldberg (Getty)
Emma Thompson
Emma Thompson (Getty)
Annie Lennox
Annie Lennox (Getty)
Oprah Winfrey
Oprah Winfrey (Reuters/Suzanne Plunkett)
The Simpsons
Matt Groening (Getty)
Aristotle (Getty)
Bob Geldof
Bob Geldof (Getty)
Lewis Carroll
Charles Lutwidge Dodgson, aka Lewis Carroll (Getty)
Lady Gaga's second album Born This Way, had 53,041 copies resold on
Lady Gaga (Reuters)
Prince William
Prince William (Getty)
Albert Einstein (Getty)
Angelina Jolie 40th birthday
Angelina Jolie (Reuters/Kevork Djansezian)
Sarah Jessica Parker
Sarah Jessica Parker (Mireya Acierto/Getty)
Brad Pitt
Brad Pitt (Getty)
Jimi Hendrix
Jimi Hendrix (Getty)
Robert De Niro
Robert De Niro (Reuters)
marilyn monroe
Marilyn Monroe (Getty)
Morgan Freeman
Morgan Freeman (Getty)