 Powderfinger have collaborated with some artists , they had pianist Benmont Tench play on Dream Days at the Hotel Existence . For touring or session work auxiliary musicians used include Alex <unk> on percussion , Duane Billings on percussion , and Lachlan Doley on keyboards . For their second album , Double Allergic , the group enlisted Tim Whitten as producer . The group approached American expatriate Nick DiDia as their producer for Internationalist , and recorded with him at Sing Sing Studios in Melbourne . DiDia also produced the following two albums . In 2007 Rob Schnapf , producer for Beck , was asked to produce Dream Days at the Hotel Existence in Los Angeles . DiDia returned for Golden Rule . Powderfinger 's first music video , for the song " Reap What You Sow " in 1993 , was directed by David Barker , an award @-@ winning director . Film companies who directed other videos of the group include Fifty Fifty Films , and Head Pictures . 
