No, so far Jason Mraz has not won a Brit Award.
They won a Brit Award
They won a BRIT award with their Number 1 single, "The Promise" which was off their Number 1 album, Out of Control.
she won a brit award
They have won a Brit Award but I don't know if they have gotten another award. Maybe
adele...
Duffy won 3 Brit Awards
Tinie Tempah - Pass out
He, and the rest of the band, won 1 Brit and 2 Nickelodeon Blimps.
They won the award for Best British Single for What Makes You Beautiful.
One Direction - What Makes You Beautiful won the Best Brittish Single award at the Brit Awards 2012
Jessie won the critics choice award in 2011.
The Arctic Monkeys won their last BRIT Award in 2008 for their album Favorite Worst Nightmare. The Arctic Monkeys have won four other BRIT Awards. In 2006, they won the award for Best British Breakthrough Act. In 2007, they won awards for Best British Group and Best British Album (Whatever People Say I Am, That's What I'm Not). They won the award for Best British group again in 2008. Also in 2008, they were nominated for Best Live Act, losing to British pop group Take That.