The 'Glad You Came' singers revealed that the Liverpool-based group will open all of their 18 dates on their arena tour, which kicks off in Nottingham's Capital FM arena on February 15 and wraps up in Dublin on March 9.
Lawson - who are fronted by singer Andy Brown - signed to Polydor Records last year, and also supported The Wanted's last string of shows.
The band are currently recording material for their debut album in Los Angeles with Grammy Award-winning producer John Shanks, who has previously worked with Take That, Michelle Branch and Westlife.
They play London's Islington Academy 2 tonight as part of their first headline tour.
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Watch Lawson covering Lady GaGa's 'Marry The Night' below: