Avril Lavigne's siblings used to mock her singing.

The 'What the Hell' hitmaker used to infuriate her brother and sister by constantly belting out her favourite tunes, but they got their own back by pointing out the funny facial expressions she pulled as she sang.

She admitted: "My brother used to knock on the wall because I used to sing myself to sleep and he thought it was really annoying. My bother and sister used to make fun of me and say when I sang, my nostrils would flare."

The 26-year-old star says her mother always believed she would become a singer and even nicknamed her "little songbird".

She explained: "My mom said when I was two I came back from church singing 'Jesus Loves Me' and she said that she knew I was going to be a singer then, she called me her little song bird, so yeah, I always wanted to be a singer."

Avril releases her new album 'Goodbye Lullaby' on March 7.