Original sentence: ... I Did It Again World Tour.1999 – "Black Cat" and "Nasty" – (originally by Janet Jackson) used during a medley on the ...Baby One More Time Tour.1999 – "Open Arms" – (originally by Journey) performed during the ...Baby One More Time Tour.1999 – "Vogue" and "Material Girl" – (originally by Madonna) used during a medley on the ...Baby One More Time Tour.2000 – " (I Can’t Get No) Satisfaction" – (originally by The Rolling Stones) performed during the Oops.2001 – "I Love Rock ‘n’ Roll" – (originally by The Arrows) performed during the Dream Within a Dream Tour.2002 – "Gone" – (originally by 'N Sync) excerpts were used during the performance of "Mystic Man" on the second leg of the Dream Within a Dream Tour.2009 – "I’m Scared" – (originally by Duffy) performed at opening night during The Circus Starring: Britney Spears.Only vocal performances and musical elements with substantial use have been included;.This list includes live cover performances sung by Britney Spears