At the beginning of July, Sean - played by 33-year-old Antony Cotton - embarks on a new fitness regime with friend and housemate Jason Grimshaw (Ryan Thomas) and regularly begins to attend a local gym.
While there, Sean falls head over heels for clean-living and religious gay gym-goer Leon, played by Andrew Langtree (pictured).
Despite his best efforts, Sean quickly realises that Leon actually fancies Jason and so in an attempt to win him around, Sean begins to tell a series of comedic lies in the hope of forging a closer friendship.
The camp barman first makes out that Jason is gay, before 'revealing' that Jason's mum Eileen (Sue Cleaver) is a Jehovah's Witness.
However, when Leon makes a surprise visit to The Rovers, he's taken aback to see Jason kissing Tina McIntyre (Michelle Keegan) and Eileen discussing gambling.
Langtree, who is also a professional singer, was handpicked by Beatles legend Sir Paul McCartney to sing during his late wife Linda's memorial service, while former Prime Minister Tony Blair's wife Cherie also asked him to perform in front of the Queen at Buckingham Palace.
A Coronation Street source told The People: "Andrew's taken a bit of friendly ribbing from his mates after singing in front of the Queen - because his new character is one. But he's fitted in really well and the storylines are set to be a lot of fun."
Langtree, who has previously appeared in Cutting It, Heartbeat, Holby City and Doctors, makes his first appearance in Weatherfield on July 3.
> Click here to see some on-location shots from filming