Kelly, then known as Spencer Bignell, grew up in Bishopstoke, near Eastleigh in Hampshire, and attended Wyvern Secondary School in neighbouring Fair Oak, then Barton Peveril College in Eastleigh.

[citation needed] He obtained a double first in Computer Science[1] from Churchill College, Cambridge.

[citation needed] After graduating, he got a job as a traffic presenter - going by the name of "Commander Kelly in the Flying Eye" on the local radio station for Portsmouth and Southampton, Ocean FM.

[citation needed] He later became the station's breakfast show host, a position he held for six years.

He became the presenter of the renamed Click series in January 2006, taking over from Stephen Cole[4] till its end in October 2024.