The song starts with a haunting piano and drum beat and Adele's signature voice builds gradually until the crescendo of the chorus. The album was perched atop Billboard's Hot 200 Albums list for 24 weeks and generated three number one singles, 'Rolling in the Deep,' 'Set Fire to the Rain' and 'Someone Like You.' That milestone is even more significant when you consider that 21 is only the 12th album since 1991 to sell at least that many copies. Released in 2011, the album has gone on to sell over 10 million copies in the U.S alone, according to Billboard. With 21, Adele broke new ground with her music. 'I mean I can't write 21 again because I'm not in that place, I'm in a great place,' she said 'I had to find another part of my life - I did pretty much write an album about being a mum, but that's pretty boring for everyone who isn't a mum (so) I scrapped that.' I thought I'd run out of ideas and lost my ability to write a song.'ДЄdele also talked about the pressure, since her fans were waiting for a follow up to her critically-lauded last album, 21.

It was a long process, and I wanted to give up a lot because I couldn't do it. 'I felt like I was never going to finish this record. 'I felt like this was never going to happen,' she said in an interview with BBC 1's Nick Grimshaw.

The British songstress recently confessed that during that time she wanted to give up on making new music, The Daily Mail reported. The release of 'Hello' marks a return to the spotlight for Adele after a four year absence. 'Hello,' the first single off of her new album 25 dropped last night along with the video and, it's classic Adele, which means it makes you want to text each one of your exes while fighting through tears.