Metaphysical poets Flecknoe" and Joseph Addison, in quoting him, singled out the poetry of George Herbert as providing a flagrant example. There is no scholarly consensus regarding which English poets or poems fit within the Metaphysical genre. In his initial use of the term, Johnson quoted just three poets: Abraham Cowley, John Donne, and John Cleveland. Colin Burrow, writing for the "Oxford Dictionary of National Biography", singles out John Donne, George Herbert, Henry Vaughan, Andrew Marvell, and Richard Crashaw as 'central figures', while naming many more, all or part of whose work has been identified as sharing its characteristics. Herbert Grierson’s "Metaphysical
Ain't No Other Man wrote, "The gig reflected the jazz club mood of Christina's new album, with a swinging brass-heavy backing band and fit dancers bounding sexily around the stage". During the "Late Show with David Letterman" on August 16, 2006, Aguilera also performed the track live. On January 20, 2007, Aguilera performed "Ain't No Other Man" at the 2007 NRJ Music Awards in Cannes, France. On February 18, 2007, Aguilera performed "Ain't No Other Man" and "Candyman" during the halftime show of the 2007 NBA All-Star Game in Las Vegas. Aguilera performed "Fighter", "Hurt" and "Ain't No Other Man" at the 2007 Muz-TV