Mescalina Musica – Free Christmas
Roberto Diana: Weissenborn on his song "Little Christmas Tree"
23
dicembre
2013
For You2 – Compilation – a tribute to Bruce Springsteen
Roberto Diana: Electric, Slide, Lap Steel and Co-producer with Lowlands on the song "Soul Driver"
23
settembre
2010
Traffic Light Project – Compilation
Roberto Diana: present with his song "Hot Hand Song"
23
settembre
2009