'Heatwave' by grime star Wiley is on course to spend a second week at the top spot after maintaining its No.1 position in today's (August 8) midweek chart update.

It is currently outselling this week's No.2 single, which is 'We'll Be Coming Back' by Calvin Harris ft. Example, and Lawson have debuted at No.3 with their new offering, 'Taking Over Me'.

Other new entries in the UK Top 40 include Dizzee Rascal's 'Scream' at No.23, Redlight's 'Lost In Your Love' at 5, and 'Little Talks' by Of Monsters and Men at No.35.

Arctic Monkeys' cover of 'Come Together' has dropped 16 places to No.37 and Alex Clare's 'Too Close' is this week's highest climber, rising 10 positions to No.25.

Elsewhere in the chart, Florence + the Machine are at No.4 with 'Spectrum', Far East Movement have risen 5 spots to No.8 with 'Turn Up The Love', and Rihanna's 'Where Have You Been' has fallen to No.32.