Meghan Trainor holds on to top spot

All About That Bass has secured its fourth week at number one in the UK singles chart

Meghan Trainor has notched up this year's longest-running number one track, after All About That Bass secured its fourth week at the top.

The track shares the honour with Clean Bandit's Rather Be, according to the Official Charts Company.

Mike Read's UKIP Calypso finished just outside the top 40, at number 44.

Earlier this week, the former BBC Radio DJ "apologised unreservedly" and asked for the song to be withdrawn following complaints that it was racist.

UKIP Calypso, performed with a mock Caribbean accent, sings the praises of party leader Nigel Farage.

"I am so sorry that the song unintentionally caused offence," Read said. "I have told the record company to withdraw the single immediately."

In the top 10, Ed Sheeran's Thinking Out Loud climbed two places to number two. The song, which has spent 18 weeks in the chart, also broke the million streams mark this week with more than 1.2 million streams.

Waze & Odyssey's Bump & Grind 2014 was the highest new entry, at number three. Jessie J, Ariana Grande and Nicki Minaj's Bang Bang lies at number four and Taylor Swift's Shake It Off completes the top five.

Singer-songwriter Ben Howard scored his first number one on the Official Albums Chart with his second studio album, I Forget Where We Were.