Possible Clues:

• Record label whose house band was Booker T. & the M.G.'s
• Isaac Hayes' 'Hot Buttered Soul' label
• Record label for Sam & Dave and Booker T. & the MG's
• 1960's soul record label
• Lay's brand
• Booker T. and the M.G.'s label
• Chips-in-a-can brand from Lay's
• Early Sam & Dave record label
• Memphis record company
• Soul label with a museum in Memphis