The East London duo lead the midweek chart update with their new track 'Feel The Love', which features John Newman.
Sweden's Eurovision 2012 champion Loreen is at two with her winning track 'Euphoria', while fun. drop to three with 'We Are Young'.
Lawson enter at number four with their debut single 'When She Was Mine', while Rihanna advances to five with 'Where Have You Been'.
Labrinth's 'Express Yourself' is up to 15, Gary Barlow's official Diamond Jubilee track 'Sing' lands at 17 and Alexandra Burke's 'Let It Go' is at 23.
Further down the chart, Justin Bieber is at 31 with new Believe album track 'Die In Your Arms' and Wretch 32 and Ed Sheeran are at 35 with 'Hush Little Baby'.
Over on the album chart Paloma Faith leads the tally with her second record Fall To Grace in a Top Five full of new entries.
Russell Watson is at five with Anthems, while Sigur Ros land at six with Valtari.
Watch the music video for Rudimental's 'Feel The Love' below: