Frontman Tom Ogden told Radio X why opening for the Manchester band at Wembley "will never sink in".
Bobby Gillespie and co. will open for the Manchester band at their Hampden Park show.
Primal Scream are set to support The Stone Roses on their upcoming tour.
The Scottish rockers will open for the Manchester band at Glasgow's Hampden Park on 24 June 2017.
Also confirmed to join the Loaded rockers is The Beta Band frontman Steve Mason.
The Stone Roses' Scottish gig will follow a huge sold-out date at London's Wembley Stadium on 17 June.