Jailhouse Rock ('68 Comeback Special) made famous by Elvis Presley
• 9 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Electric Guitar, Electric Guitar, Piano, Lead Vocal)

Jam (Footstompin' Music) made famous by Grand Funk Railroad
• 9 customizable audio tracks:
(Click, Drum Kit, Bass, Electric Guitar, Organ, Organ, Organ, Backing Vocals, Lead Vocal)

Joey made famous by Concrete Blonde
• 14 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Acoustic Guitar, Acoustic Guitar, Electric Guitar, Electric Guitar, Distorted Electric Guitar, Distorted Electric Guitar, Lead Electric Guitar, Organ, Backing Vocals, Lead Vocal)

Jungle Love made famous by The Time
• 11 customizable audio tracks:
(Click, Drum Kit, Percussion, Synth Bass, Electric Guitar, Lead Electric Guitar, Synth Pad, Synth Keys, Synth Brass, Backing Vocals, Lead Vocal)

Jojo made famous by Boz Scaggs
• 15 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Electric Guitar, Electric Piano, Synth Keys, Synth Brass, Brass section, Tenor Saxophone, String Section, Flute, Backing Vocals, Lead Vocal)

Jessie made famous by Joshua Kadison
• 14 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Acoustic Guitar, Lead Electric Guitar, Distorted Electric Guitar, Piano, Organ, Organ, String Section, Backing Vocals, Lead Vocal)

Jailbreak made famous by Thin Lizzy
• 10 customizable audio tracks:
(Click, Drum Kit, Bass, Rhythm Electric Guitar, Rhythm Electric Guitar, Lead Electric Guitar, Lead Electric Guitar, Sound effects, Backing Vocals, Lead Vocal)

Just Breathe made famous by Willie Nelson & Lukas Nelson
• 15 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Acoustic Guitar, Electric Guitar, Electric Guitar, Lead Electric Guitar, Lap Steel Guitar, Piano, Organ, Synth Pad, Backing Vocals, Lead Vocal, Lead Vocal)

Just the Way You Are (live - on NBC's Today) made famous by Bruno Mars
• 11 customizable audio tracks:
(Click, Drum Kit, Hand Clap, Bass, Electric Guitar, Piano, Trumpet, Trombone, Tenor Saxophone, Backing Vocals, Lead Vocal)

Just You 'N' Me made famous by Chicago (band)
• 11 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Piano, Electric Piano, Brass section, Soprano Saxophone, Backing Vocals, Lead Vocal)