The Swedish striker moves to Parkhead on a season-long deal and will replace former City striker Georgios Samaras who joined West Brom in August.
Guidetti has found first-team opportunities limited at the Etihad and has spent several spells out on loan with Burnley, Stoke and most notably Feyenoord where he scored 20 goals in just 23 games.
The 22-year-old will now hope to reignite his career in Glasgow and force his way back into the Sweden squad.
Keep tabs on Super Guidetti’s fortunes in our weekly Loan Watch series.
Here are some of the best snaps from the striker’s time at the Club...
BROMANCE: Firm friends John and Fernandinho walk out on to the Carrington pitch
BACK IN THE DAY: The striker flashes a grin in the stands of the Etihad Stadium
PREPARATION: The Swede takes part in one of his first ever pre-match warm-up sessions
BRRR! John takes on the #ALSicebucketchallenge with a little help from his teammates
ACTION SHOT: The striker in featured in Manuel Pellegrini’s squad in the pre-season tour of the USA
ON THE BALL: And here he is again in action during another Club tour in Dublin
SMILEY SWEDE: John puts pen to paper on a new contract back in 2012
