Surrounded by rows of people packed together in the dark halls of London’s Aldwych Theatre, Ayodele Owolabi became a convert to a faith brand new to her: the gospel of Tina Turner. The D.C. musician known as iothesinger (IO for short) managed to squeeze in a night at The Tina Turner Musical between family events while on a trip to London in 2022. Four years later, it’s not hard to hear the Queen of Rock ’n’ Roll’s influence in Owolabi’s own mus…