Can you imagine which number one could be?

A list of the best-selling British albums of the 21st century has been published.

On the occasion of National Album Day (October 12), a list of the country's top 40 bestselling albums has been released on BBC Radio 2 over the last 20 years Selection of pops,

Adele took first place with her second album "21", which has sold more than five million copies since its release in 2011.

The album with hits like "Rolling in the Deep" and "Someone Like You" has sold more than a million copies of Amy Winehouse's "Back To Black".

Adele's latest album, "25", also landed in third place on the list, while her debut, "19", also landed in 26th place.

Adele has three albums in the top 40 bestselling 21st Century albums in the UK

Adele's album "21" is the best selling 21st Century album in the UK.

Other albums that should appear on the list were Ed Sheeran's & # 39 ;, & # 39; + & # 39; and & # 39 ;, Didos & # 39; No Angel & # 39; and & # 39; Life For Rent & # 39 ;, King of Leons & # 39; Only By the Night & # 39 ;. Eminems & # 39; Marshall Mathers LP & # 39; as well as albums by Coldplay, Lady Gaga, Take That, Keane, Green Day, Maroon 5, Scissor Sisters and Robbie Williams.

See the complete list below:

1 '21' – Adele (2011)

2 "Back to Black" – Amy Winehouse (2006)

3 '25' – Adele (2015)

4 "X" – Ed Sheeran (2014)

5 & ​​# 39; & # 39; & # 39; – Ed Sheeran (2017)

6 "Back To Bedlam" – James Blunt (2004)

7 "Spirit" – Leona Lewis (2007)

8 "Crazy Love" – ​​Michael Buble (2009)

9 "No Angel" – Dido (2000)

10 "White Ladder" – David Gray (1999)

11 "The Fame" – Lady Gaga (2008)

12 "Only in the night" – Kings Of Leon (2008)

13 "A Bloodlust to the Head" – Coldplay (2002)

14 "Christmas" – Michael Buble (2011)

15 "Living for Rent" – Dido (2003)

16 "Beautiful World" – Take That (2006)

17 "Hopes and Fears" – Keane (2004)

18 "X & Y" – Coldplay (2005)

19 "Scissor Sisters" – Scissor Sisters (2004)

20 "Parachutes" – Coldplay (2000)

21 "Come with me" – Norah Jones (2002)

22 "The Marshall Mathers Lp" – Eminem (2000)

23 "In the lonely hour" – Sam Smith (2014)

24 "+" – Ed Sheeran (2011)

25 "Open Your Eyes" – Snow Patrol (2006)

26 "19" – Adele (2008)

27 "Our version of events" – Emeli Sande (2012)

28 "Swing When You Are Winning" – Robbie Williams (2001)

29 "Progress" – Take That (2010)

30 "Hot Foot" – Killers (2004)

31 'American Idiot' – Green Day (2004)

32 "The Circus" – Take That (2008)

33 "Rockferry" – Duffy (2008)

34 "Sing when you win" – Robbie Williams (2000)

35 'By the Way' – Red Hot Chili Peppers (2002)

36 "Songs about Jane" – Maroon 5 (2003)

37 "Escapology" – Robbie Williams (2002)

38 "Employment" – Kaiser Chiefs (2005)

39 "The Greatest Showman" – Film Cast Recording (2017)

40 "Loud" – Rihanna (2010)

In the meantime, Lady Gaga could call her next studio album "ADELE", a tweet the musician posted earlier this month.

The tweet read: "I call my next album ADELE", with some fans assuming that Gaga is just fun, and others wondering if they are serious about naming their album after their pop mega star.