 The band briefly considered self @-@ producing , but were pressured by Geffen to choose a producer . They ultimately decided on Ric Ocasek ; Cuomo explained his choice : " I 'd always admired The Cars and Ric Ocasek 's songwriting and production skills . " During production , Ocasek convinced the band to change their guitar pickup from the neck pick @-@ up to the bridge pick @-@ up , resulting in a brighter sound . During these sessions , founding guitarist Jason Cropper left the band and was replaced by current guitarist Brian Bell , leading to some speculation about how much Bell contributed to the album . While Bell 's vocals are clearly audible on some tracks , Cuomo re @-@ recorded all of Cropper 's guitar parts . According to Ocasek , all ten tracks were laid down by Cuomo in one day , each in one take . However , Bell is still credited for playing guitar in the album liner notes . Cropper 's writing credit on " My Name Is Jonas " is earned by his coming up with the intro to the song . 
