During early 2004 Lavigne went on the 'Live and By Surprise' acoustic mall tour in the US and Canada to promote Under My Skin, accompanied by her guitarist Evan Taubenfeld.
Selama awal tahun 2004 Lavigne mengadakan tur akustik mall bernama Live and By Surprise di Amerika Serikat dan Kanada untuk mempromosikan Under My Skin, bersama dengan gitarisnya Evan Taubenfeld.