The Lalaloopsy girls find that musical dreams do come true- when you get a little help from your very best friends! After Jewel learns that Keys dreams of being a pop star, she helps her put together her own band, The Buttonettes. Soon everyone is feeling the joy of music, as Spot starts making musical art pieces and Dot discovers a new musical galaxy!
| Actor | Role |
|---|---|
| EErica CukulinSticks Boom Crash (voice) | Sticks Boom Crash (voice) |
| LLaura GervaisStrings Pick 'N' Strum (voice) | Strings Pick 'N' Strum (voice) |
| JJelani Imani(voice) | (voice) |
| GGriffin KingstonAce Fender Bender (voice) | Ace Fender Bender (voice) |
 Tate McRaeSpot Splatter Splash (voice) | Spot Splatter Splash (voice) |
 Tristan Samuel(voice) | (voice) |
| SSelia SangraJewel Sparkles (voice) | Jewel Sparkles (voice) |
| HHayley StoneBea Spells-A-Lot (voice) | Bea Spells-A-Lot (voice) |
| KKarli SuperaChloe (voice) | Chloe (voice) |
| MMarissa TawiahDot Starlight (voice) | Dot Starlight (voice) |
| SSofia TchernetskyKeys Sharps 'N' Flats (voice) | Keys Sharps 'N' Flats (voice) |
| KKeaton WhitbreadForest Evergreen (voice) | Forest Evergreen (voice) |
 Michole Briana White(voice) | (voice) |