Lily Allen is the daughter of comedian Keith Allen

The 21-year-old nudged Shakira's Hips Don't Lie into the second spot after it spent just one week at the top of the singles chart.

Allen - who has built a solid fan base on the internet - entered the chart at number 13 last week based on download sales alone.

Razorlight rose to three from 15th place with In The Morning, while Nelly Furtardo slipped to four with Maneater.

UK TOP FIVE SINGLES 1. Lily Allen - Smile 2. Shakira - Hips Don't Lie 3. Razorlight - In The Morning 4. Nelly Furtado - Maneater 5. Paolo Nutini - Last Request Source: Official UK Charts Company

This week's highest new entry was Last Request by Paolo Nutini at number five, while Sandi Thom's I Wish I was a Punk Rocker fell two places to sixth.

Allen's witty songs about life in London have made her one of the biggest new stars of the year.

Her career has been given a leg-up by the social networking site MySpace and her debut album Alright, Still, will be released on 17 July.

In this week's album charts, Muse stormed straight in at number one with Black Holes & Revelations.

The Kooks climbed one spot to two with Inside In/Inside Out while the Zutons' Tired of Hanging Around climbed two to three.