Nicky Hayden will make a one-off return to MotoGP when he replaces the injured Jack Miller at the Aragon Grand Prix this weekend.
The American joined the World Superbike season this year after 13 years in MotoGP, eight of which were at Honda.
“I love racing motorcycles, so I'm looking forward to it," the former world champion told crash.net.
"My home is Superbike now, so this ain't some try-out to go back; this is just a case of a fellow Honda team needing a rider.
"I'll go and try to enjoy it. I know it's tough in MotoGP and I've never ridden those Michelin tyres, but I'll try to learn something and have a little fun."
Hayden is set to feature in just one race while Miller recovers from a hand fracture. He also wished the Australian a swift recovery.
"First of all I want to wish Jack a speedy recovery," said the 35-year-old.
"He is a buddy of mine and he is a rider I believe in a lot, so I hope he can get healthy as quickly as possible to show the high potential we all know he has got. He just needs to get his body right so he can perform."
Hayden went on to say that he realises that this is a fairly unique situation and thanked Honda, who he has had a good relationship with after winning the MotoGP world championship with them in 2006.
"This is an unusual experience for me because I've never been a stand-in rider before," revealed Hayden.
"But I have a good relationship with Honda and when the idea first came up they were behind it and Ten Kate gave me their blessing, so it is nice to go and help out another Honda team. For me it just a chance to go and have fun. I'd probably be riding motorbikes anyway and I would definitely be watching the race on TV, so I might as well show up and have some fun.
"I know MotoGP is not a place that's always easy to have fun because the level is so high but I've got a lot to learn and it won't be a walk in the park. I haven't ridden the bike and there are different tyres and electronics but I've got a lot of experience and I get another shot at MotoGP, which is great for me personally.
"I want to thank Team Estrella Galicia 0,0 Marc VDS for the opportunity and Ten Kate and my sponsors who all made it happen and I will try and do them all proud."