Mumford And Sons really shined at the Grammy’s Sunday, yes? The Mumford moment kept going this week by taking home the top prize at the 2011 Brit Awards this evening (February 15). The band won the MasterCard British Album Of The Year prize for Sigh No More.

Arcade Fire, fresh off their Grammy for Album of the Year, took home two awards (International Group and International Album), while other winners included Rihanna for International Female Solo Artist and Justin Bieber (who?) for International Breakthrough.

Check below for a complete list of winners from the Brit Awards!

Mumford And Sons received the top prize of the evening for their debut album from The Who’s Roger Daltrey. Accepting the award, Marcus Mumford said: “This is very bizarre, very strange. Thank you very much indeed.”

The U.K. quartet bested Plan B, Take That, Tinie Tempah and The xx to win the award.

Sigh No More was released in October 2009 and it’s easy to see their support continue to swell – and deservedly. In early January the album reached number one on both iTunes and Amazon, so clearly banjo-pop can hang with the big dogs of popular music these days. Sigh No More is also presently the top selling album on iTunes in Canada, if ya hadn’t heard!

A big sales bump is expected for Mumford And Sons following the Grammy Awards. They didn’t win an award for either of the two categories they were nominated, but their performance of the song “The Cave,”along with joining Avett Brothers and Bob Dylan for “Maggie’s Farm,” probably gained them plenty of new fans.

LA Times says that Mumford & Sons’ U.S. label, Glassnote Entertainment, reports that through Sunday night, Sigh No More had sold 31,000 copies on iTunes store alone, and it is currently No. 1 on the both the iTunes and Amazon digital album charts.

“The Cave” is #5 right now on the iTunes singles chart.

The full list of Brit Award winners:

Best British Male
Plan B

Best British Female
Laura Marling

Best Single
Tinie Tempah – Pass Out

Best British Breakthrough Act
Tinie Tempah

Best International Album
Arcade Fire – The Suburbs

Critics Choice
Jesse J

Best International Male
Cee Lo Green

Best International Breakthrough Act
Justin Bieber

Best International Female
Rihanna

Best British Group
Take That

Mastercard Best British Album
Mumford And Sons – Sigh No More