Late in his career he was also known outside the football community, through reality television appearances, modelling and singing.

In Round 2 against the Hawks on Easter Monday, Robertson landed awkwardly while trying to take one of his trademark high flying marks and injured the medial ligament in his knee, along with David Neitz who suffered the same injury, and missed up to 7 weeks of football.

Returning from injury, Robertson hit back to his best, kicking 7 goals against Collingwood in the traditional Queen's Birthday game at the MCG in Round 11.

On 20 August 2009, Robertson announced that he would be playing his last match with the Demons in season 2009 having been advised that his contract would not be renewed.

[5] Outside of football, Robertson is a musician, who has abilities in singing and playing guitar, modelling and has become somewhat of a television personality.

[6] On 26 October 2006, Robertson married former Melbourne Storm cheerleader and aspiring actress Brooke Aust.

Robertson also made an appearance in 2008 singing on the Australian television show It Takes Two with partner Kate Ceberano in which they were runners-up.

In 2018, Robertson sung a drawn-out and off-key version of the Australian National Anthem at the VFL Grand Final.

[10][additional citation(s) needed] In September 2018, Robertson was a football consultant, and appeared in Season 1, episode 2, on the Australian drama Playing for Keeps.