 Entertainer John Barrowman sang a version of " The Wizard and I " ( retitled " The Doctor and I ) on his 2008 UK tour , with adapted lyrics referring to his Doctor Who and Torchwood character Jack 's affection for The Doctor . Kerry Ellis , who played Elphaba in the West End and on Broadway , recorded " I 'm Not that Girl " for the fifth anniversary edition of the original Broadway cast recording . She also recorded her own rock version of " Defying Gravity " . Both songs were produced by British musician Brian May and were featured on her extended play Wicked in Rock ( 2008 ) and debut album Anthems ( 2010 ) . She performed her version of " Defying Gravity " at the 2008 Royal Variety Performance alongside May on guitar . A dance remix of her rock version of " Defying Gravity " was later released in 2011 . Louise Dearman , who has played both Elphaba and Glinda in the West End , released an acoustic version of " Defying Gravity " for the Wicked edition of her album Here Comes the Sun . Her former co @-@ star and London Elphaba Rachel Tucker also covered " Defying Gravity " on her debut album The Reason ( 2013 ) . Rapper Drake and singer Mika both sampled the musical 's song in their songs " Popular " and " Popular Song " respectively . American band Wheatus released an EP ' The Lightning EP ' in their ' Pop , Songs & Death ' series that was inspired by Wicked with heavy influences throughout including lyrics in " Real Girl " such as " You were the perfect colour , Bright green lady " with Elphaba and Scarecrow @-@ like characters in the video . The cover art for the album was also bright green and included an Elphaba @-@ style hat . 
