I haven't bought any songs in a while, let alone whole albums. But I think the last album I bought a digital copy of was Safari Disco Club
by Yelle. They've got some pretty great electropop.
I will arbitrarily link to Comme un enfant
because I can't pick a favorite off of that album. ;n;
EDIT: WAIT ACTUALLY I DO KNOW WHAT CD I BOUGHT LAST.
It's the Super Mario Galaxy soundtrack. I love every bit of it. <33333