Sonny Robertson

Ryan Derek "Sonny" Robertson (born June 10, 1996) is 1/2 of the musical duo, Four Eyes and The Skyscraper. He was a member of the British boy band Overload from 2013-2015. He became the bassist for the band Young Kings, in July 2015, for a short period of time. He replaced Mikey Cobban in RoadTrip in 2019, after the departure of Cobban.

Robertson was born on 10 June 1996, his surname legally changed. He is from Basildon, Essex, England. He has two younger sisters: Sharna Robertson-Bourke and Lolly Robertson-Bourke. He has three elder brothers from a previous marriage his father had, and his elder brother Robbie passed away.

He had various jobs, including working at a theme park in South End, a builder's yard, one night working at the bar, and having an apprenticeship somewhere. He worked at the railway, scrubbing trains every night, and would occasionally sit on the steps behind the fence each night, wanting to go back into music. Sometime later he quit his job, flew out to America to meet "some kid on a whim" that had been in a band, but it did not work out. He joined RoadTrip a few weeks later, being reunited with Fowler again.

He has an 'H' tattoo on his right arm for his mother, and two on the back of his forearms for his sisters. On his collarbone are Greek words that translate in English: "Reward of Glory". He also has one on his spine and one on his ribs. On the back are Roman numerals, which is his lucky number. On 5 March 2020, he got an 'SB' tattoo in cursive for RoadTrip's concert One Night Only at Shepherd's Bush, matching with Beaumont.

In 2020, he opened up about his romantic relationship with his girlfriend, Hannah McGoldrick.