▁for ▁children ▁with ▁life - th re aten ing ▁ill ness es . ▁ ▁Since ▁then , ▁they ▁have ▁also ▁contributed ▁count able ▁hours ▁of ▁their ▁time — and ▁$ 4 ▁million — to ▁Mon roe ▁Care ll ▁Jr . ▁Children ' s ▁Hospital ▁at ▁V ander b ilt ▁which ▁is ▁among ▁the ▁nation ' s ▁leading ▁ped iat ric ▁facilities , ▁where ▁the ▁Ras cal ▁Fl att s ▁Ped iat ric ▁S urg ery ▁Center ▁was ▁named ▁in ▁recognition ▁of ▁the ▁tri o ' s ▁long - standing ▁invol vement . ▁ ▁Re ception ▁The ▁group ▁has ▁an ▁un common ▁youth ▁dem ographic ▁( 1 8 – 2 5 ) ▁for ▁country ▁music . ▁In ▁September ▁ 2 0 0 7 , ▁Week ly ▁Re ader ▁Research ▁conducted ▁a ▁poll ▁of ▁more ▁than ▁ 2 , 0 0 0 ▁children ▁and ▁Ras cal ▁Fl att s ▁ranked ▁as ▁the ▁sixth - most - pop ular ▁act ▁among ▁ages ▁ 1 0 – 1 2 . ▁ ▁They ▁have ▁raised ▁and ▁don ated ▁millions ▁of ▁dollars ▁to ▁the ▁Mon roe ▁Care ll ▁Jr . ▁Children ' s ▁Hospital ▁at ▁V ander b ilt . ▁They ▁are ▁also ▁involved ▁with ▁the ▁American ▁Red ▁Cross ▁as ▁they ▁are ▁members ▁on ▁the ▁celebr ity ▁cabinet ▁board . ▁ ▁Tour ing ▁Ras cal ▁Fl att s ▁has ▁enjoyed ▁financial ▁success ▁as ▁tour ing ▁artists . ▁N iel sen ▁reported ▁that ▁the ▁band ▁was ▁the ▁top ▁s elling ▁artist ▁in ▁ 2 0 0 6 : ▁" R