Listen to Lil Wayne & Blink 182’s mashup of “A Milli” & “What’s My Age Again.” In between dates on their co-headlining tour, Lil Wayne & blink-182 have teamed up for a new mash-up of “What’s My Age Again?” and “A Milli.” The track, which was previously performed & debuted in a live version a few months ago, brings the two very different songs …