Nyorai kupfuurira kweiyi ndima - "E=MC2" yakatanga panhamba imwe pa"Billboard" 200 nekopi 463,000 dzakatengeswa, kutengesa kukuru kwevhiki yokutanga yebasa rake. Muna 2008, Carey akaitawo muimbi anofarira anonzi Krystal mu "Tennessee" uye akaonekwa mufirimu raAdam Sandler "Haufanire Kuseka naZohan", achizvitamba. Kubvira pakabudiswa dambarefu racho, Carey akanga aronga kutanga rwendo rwakawanda achitsigira "E=MC2". Zvisinei, rwendo rwacho rwakangoerekana rwabviswa pakutanga kwaDecember 2008. Carey akazotaura kuti akanga ava nepamuviri panguva iyoyo, uye akabatwa nepamuviri, nokudaro akadzima rwendo rwacho. Musi waNdira 20, 2009, Carey akaita "Hero" paNeighborhood Inaugural Ball
pashure pokunge Barack Obama apa mhiko semutungamiri weUnited States wechiAfrica-America wokutanga. Musi waChikunguru 7, 2009, Carey <unk> pamwe naTrey Lorenz <unk> vakaita yake vhezheni yeThe Jackson 5 rwiyo "Ndichave Ndiripo" pamusangano wekuyeuka Michael Jackson.