Adele is a British singer and songwriter. Her two previous albums, 19 and 21, have earned the artist numerous awards. Now, she has just released her third album 25 and the song Hello is the first single from the album. The song is a soul piano ballad that talks about nostalgia and regret and plays out like a conversation. Hello is the first song to sell over one million digital copies within one week of its release in the USA. (source Wikipedia)
The content of the lyrics is open to interpretation. Some people say it’s about a failed love relationship, some others argue that it is about Adele’s relationships with everybody she loves and cannot be with; others, on the other hand, claim it is Adele’s conversation with her old self before she became famous.