"Rockstar" is the second single from former N-Dubz lead rapper Dappy's debut studio album, Bad Intentions staying with the commercial pop template of his previous single, "No Regrets". It was released on 23 February 2012. The song also features legendary Queen guitarist Brian May. A music video to accompany the release of "Rockstar" was first released onto YouTube on 18 January 2012 at a total length of three minutes and forty-eight seconds, it was directed Colin Tilley. The video has received 11 million views on YouTube.

Lewis Corner of Digital Spy gave the song a very positive review stating:

Fortunately, Dappy hasn't wandered too far away from what made his first cut so successful. Head-bopping beats and lyrical word play detail the star's turbulent relationship with the press ("If the Guardian's my angel, why's The Sun burning holes in me?"). But what sets this apart from his previous effort is May's rumbling guitar riffs which culminate in an electrifying solo at the end. Given it's something few can resist, we're confident this will be another bona fide smash. .

...
Wikipedia