Thanks to the massive success of her ’21′ album, Adele ruled the 2011 Billboard Year-End charts and now the omnipresent set has earned her a spot at the top once again. Easily outselling her competition, the recluse diva has bested Rihanna, Justin Bieber and even Taylor Swift as 2012′s top act.

Adele has been named as the Top Artist of the last charting year extending from the week of December 3rd 2011 through November 24th 2012. The diamond-certified ’21′ has also been crowned as the year’s best-seller and the Top Album of the Billboard 200.

Since January 1st 2012, ’21′ has sold over 4.26 million copies in the US. The record is also the most recently released album to achieve diamond status by the RIAA – its predecessor was Usher’s ‘Confessions’ album of 2004 – and it officially crossed the 10-million sales mark during the week of November 27th 2012. How long did it take to accomplish the latter feat? Just 92 weeks, during which time it never left the Billboard 200!

See the top 10 rankings of some of the major Year-End charts below:

Top Artist

1. Adele

2. Rihanna

3. Taylor Swift

4. Drake

5. Justin Bieber

6. Nicki Minaj

7. Katy Perry

8. Maroon 5

9. LMFAO

10. One Direction

Top New Artists

1. One Direction

2. Carly Rae Jepsen

3. Gotye

4. The Wanted

5. Ellie Goulding

6. Calvin Harris

7. PSY

8. 2 Chainz

9. Hunter Hayes

10. Alex Clare

Top Billboard 200 Albums

1. Adele – ’21′

2.  Michael Buble – ‘Christmas’

3. Drake – ‘Take Care’

4. Taylor Swift – ‘Red’

5. One Direction – ‘Up All Night’

6. Luke Bryan – ‘Tailgates & Tanlines’

7. Mumford & Sons – ‘Babel’

8. Rihanna – ‘Talk That Talk’

9. Lionel Richie – ‘Tuskegee’

10. The Black Keys – ‘El Camino’

Top Hot 100 Songs

1. Gotye – ‘Somebody That I Used to Know (Ft. Kimbra)’

2. Carley Rae Jepsen – ‘Call Me Maybe’

3. fun. – ‘We Are Young (Ft. Janelle Monae)’

4. Maroon 5 – ‘Payphone (Ft. Wiz Khalifa)’

5. Ellie Goulding – ‘Lights’

6. The Wanted – ‘Glad You Came’

7. Kelly Clarkson – ‘Stronger (What Doesn’t Kill You)’

8. Rihanna – ‘We Found Love (Ft. Calvin Harris)’

9. Nicki Minaj – ‘Starships’

10. One Direction – ‘What Makes You Beautiful’

Top R&B/Hip-Hop Artists

1. Drake

2. Rihanna

3. Nicki Minaj

4. Lil Wayne

5. Chris Brown

6. Beyonce

7. Tyga

8. Usher

9. 2 Chainz

10. Kanye West

Top R&B/Hip-Hop Songs

1. Beyonce – ‘Love on Top’

2. Usher – ‘Climax’

3. Wale – ‘Lotus Flower Bomb (Ft. Miguel)’

4. Drake – ‘The Motto (Ft. Lil Wayne)’

5. Kanye West, Big Sean, Pusha T, 2 Chainz – ‘Mercy’

6. Miguel – ‘Adorn’

7. Trey Songz – ‘Heart Attack’

8. 2 Chainz – ‘No Lie (Ft. Drake)’

9. Chris Brown – ‘Strip (Ft. Kevin McCall)’

10. Drake – ‘Make Me Proud (Ft. Nici Minaj)’

See all the Year-End charts by clicking here. Also, watch the video for 2012′s Top Hot 100 Song, Gotye’s ‘Somebody That I Used to Know (Ft. Kimbra)’, below:

Thoughts?