Celtic boss Gordon Strachan has continued his summer spending spree with the capture of striker Derek Riordan.
Strachan is keen to ensure his side put up a fight in the UEFA Champions League and has already brought in midfield quality in the guise of Jiri Jarosik.
Riordan was a long-term target for Strachan and in fact signed a pre-contract agreement to make the move to Parkhead in October.
The Bhoys, though, were keen to have the striker in place for the start of pre-season and reached agreement with Hibernian on Friday.
This has allowed Riordan to sign a three-year deal with an option in place for a further 12 months, and the 23-year-old will join up with his new team-mates for pre-season training.
Riordan is looking forward to getting his career in Glasgow started.
"I am very excited about joining Celtic," said Riordan. "Celtic is a club which has a fantastic history, tremendous fans and one which has enjoyed great success over many years.
"Along with the other players at the club, I will be working hard to try to ensure that we continue to bring the fans success."
Strachan feels Riordan has the qualities needed to succeed at Celtic.
"Derek is a young, talented football player and we are looking forward to working with him," said Strachan. "I am sure he can be a great success at Celtic."