The former agent for the band, who disbanded in 2011, confirmed to NME that Rob had died of undisclosed causes on Friday.
After the devastating news had broken, Matt posted a tribute to the late musician on his Instagram page, writing: “One of my first ever acts. I’m so sorry to hear the terrible news today. Robb was always a true gentleman.”
Rob first formed the indie-rock band The Holloways in 2004, and went on to release two albums as part of the group, ‘So This Is Great Britain?’ and ‘No Smoke No Mirrors’.
They are best known for their cheerful and optimistic single ‘Generator’, which peaked at no. 14 in Briain but topped the UK indie chart, as did their later single releases ‘Dancefloor’ and ‘Two Left Feet’.
The Holloways also performed sets at Glastonbury, V Festival and Lovebox during their time together.
After completing their farewell tour in 2011, the band went their separate ways, with Rob going on to briefly front the folk group Rob Skipper & The Musical Differences.
Following this, he became the frontman for the band HARES, who have toured the UK with other indie acts such as The Vaccines, One Night Only and Pigeon Detectives.