. ▁launched ▁rem ac cel er ate . com , ▁a ▁web ▁page ▁for ▁prom oting ▁and ▁aggreg ating ▁news ▁about ▁the ▁album ▁itself . ▁ ▁In ▁late ▁March ▁ 2 0 0 8 , ▁the ▁band ▁released ▁Acc eler ate ▁as ▁a ▁digital ▁web ▁streams ▁on ▁i Like ▁six ▁days ▁prior ▁to ▁the ▁American ▁release ▁of ▁its ▁physical ▁album ▁in ▁April . ▁Michael ▁St ipe ▁said ▁R . E . M . ▁wanted ▁to ▁experiment ▁with ▁its ▁distribution ▁system , ▁cit ing ▁the ▁change ▁in ▁the ▁music ▁industry ▁since ▁the ▁release ▁of ▁Ar ound ▁the ▁Sun . ▁A ▁del ux e ▁edition ▁of ▁the ▁album ▁was ▁released ▁in ▁addition ▁to ▁the ▁standard ▁edition ; ▁it ▁includes ▁a ▁DVD ▁featuring ▁film maker ▁Vincent ▁Moon ' s ▁film ▁ 6 ▁Days , ▁which ▁includes ▁behind - the - sc enes ▁foot age ▁and ▁performances ▁of ▁various ▁songs ▁on ▁the ▁album . ▁Two ▁B - side ▁tracks , ▁" Red ▁Head ▁Walk ing " ▁and ▁" A ir lin er ," ▁are ▁included ▁as ▁bonus ▁tracks , ▁along ▁with ▁a ▁ 6 4 - page ▁book let . ▁The ▁vin yl ▁version ▁consists ▁of ▁two ▁ 1 2   inch ▁disc s ▁each ▁running ▁at ▁ 4 5 ▁R PM , ▁and ▁contains ▁the ▁full ▁album ▁on ▁CD . ▁ ▁A ▁brief ▁tour , ▁the ▁last ▁of ▁the ▁group ' s ▁ten ure , ▁took ▁place ▁in ▁ 2 0 0 8 . ▁It ▁covered ▁Europe , ▁North ▁America , ▁and ▁Latin ▁America . ▁