1 Piano,4 Hands,Piano Duet - Level 3 - Digital Download SKU: A0.1353848 By Jason Mraz & Colbie Caillat. By Colbie Caillat, Jason Mraz, and Timothy Fagan. Arranged by Matheus Ribeiro. Pop,Wedding. Score. 5 pages. Matheus396 #938601. Published by Matheus396 (A0.1353848). Lucky by Jason Mraz (feat. Colbie Cailat) arranged for 4 hands piano! A perfect duet to have fun with someone you love!