Question: who wrote i'll feel a whole lot better
Answer: Written by Gene Clark , who also sings the lead vocal , `` I 'll Feel a Whole Lot Better '' features some of the Byrds ' early musical trademarks , including Jim McGuinn 's jangling 12 - string Rickenbacker guitar ; Clark 's pounding tambourine ; McGuinn , Clark , and David Crosby 's complex harmony singing ; and a country - influenced guitar solo .