Vocal backing track: 14 individual files:
Lead Vocal; Backing Vocals; Sound Effect; String Section; Arpegiator; Synth Keys; Synth Lead; Organ; Arr. Electric Guitar wah-wah; Rhythm Electric Guitar; Bass Synth filter; Electric Bass; Drums and Percussion
Vocal backing track: 14 individual files:
Lead Vocal Britney Spears; Lead Vocal will.i.am; Backing Vocals; Sound Effect; Synth Keys 3; Synth Keys 2; Synth Keys 1; Synth Voice; Synth Strings; Synthesizer; Piano; Bass Synth; Electronic Drum Kit
Vocal backing track: 14 individual files:
Male Lead Vocal; Female Lead Vocal; Backing Vocalsad lib; Backing Vocals; Synthesizer2; Synthesizer1; Electric Piano2; Electric Piano1; Electric Guitar; Bass Synth; Electronic Toms; Electronic Percussion; Drum Kit
Vocal backing track: 13 individual files:
Lead Vocal; Backing Vocals; Sound Effect; String Section; Synth Keys; Synth Pad; Piano; Electric Guitar; Bass Synth; Hand Clap; Toms; Electronic Drum Kit
Vocal backing track: 10 individual files:
Lead Vocal; Synth Brass; Synth Keys; Synth Lead2; Synth Lead1; Synth Strings; Piano; Bass Synth; Electronic Drum Kit
Vocal backing track: 12 individual files:
Lead Vocal; Backing Vocals; Sound Effect; Glockenspiel; Synth Keys 2; Synth Keys 1; Synth Strings; Piano; Electric Guitar; Bass Synth; Electronic Drum Kit
Vocal backing track: 8 individual files:
Lead Vocal; Backing Vocals; Sound Effect; Synth Keys2; Synth Keys1; Bass Synth; Electronic Drum Kit
Vocal backing track: 14 individual files:
Lead Vocal; Backing Vocals; Sound Effect; Bells; Synth Pad; Synthesizer2; Synthesizer1 (trance); Piano2; Piano1; Electric Guitar; Bass Synth; Electronic Drum Kit; Click
Vocal backing track: 11 individual files:
Lead Vocal; Backing Vocals; Sound Effect; Synth Strings; Synthesizer; Organ; Electric Guitar2; Electric Guitar1; Bass Synth; Electronic Drum Kit
Vocal backing track: 8 individual files:
Lead Vocal; Backing Vocals; Sound Effect; Synth Keys; Electric Guitar; Bass Synth; Electronic Drum Kit