90s at 9 Oasis Second Best To the Beatles

Oasis's album [What's the Story] Morning Glory is the second best selling album in the UK, the first is Sgt. Pepper's Lonely Hearts Club Band by the Beatles.

Oasis released "Wonderwall" was the 4th single from the band's second studio album [What's the Story] Morning Glory in 1995. It reached #8 on the U.S. Billboard Hot 100, #10 Maintream Top 40, #1 Alternative Songs, and #9 Mainstream Rock Tracks charts.
[What's the Story] Morning Glory is the 2nd best selling album in UK history behind Sgt. Pepper's Lonely Hearts Club Band by the Beatles. 
Speaking of the Beatles the music for "Wonderwall" was based on George Harrison's instrumental album written for the 1968 movie Wonderwall. That was the first solo album ever released by any of the Beatles.
From Songfacts:

The general consensus is that this song is about Noel Gallagher's then-girlfriend Meg Mathews, who is compared with a schoolboy's wall to which posters of footballers and Pop stars are attached. He told Select magazine at the time: "It's about my girlfriend. She was out of work, and that, a bit down on her luck, so it's just saying, 'Cheer up and f---in get on with it.'" Noel later married then divorced Meg Mathews.

However, according to Q magazine's 1001 Best Songs Ever, this was not about Mathews. Noel is quoted as saying, "The meaning of that song was taken away from me by the media who jumped on it. And how do you tell your Mrs. it's not about her once she's read it is? It's about an imaginary friend who's going to come and save you from yourself."

Oasis "Wonderwall" 1995