Which two people helped co-write a song on Roy Orbison's album that hit #2 on the UK Albums Chart?
You Got It:  Although it is an Orbison solo single, Orbison's fellow Traveling Wilburys bandmates, Tom Petty and Jeff Lynne, co-wrote the song and played instruments on the record. Mystery Girl:  The album became a hit worldwide, reaching #5 on the US "Billboard" 200, and #2 on the UK Albums Chart.
Tom Petty and Jeff Lynne