Mariah Carey pulled off a home run version of “Vision of Love” and “Infinity” last night on Jimmy Kimmel. I read a quote from L.A. Reid, the head of her record label, that no legacy artist will get a number 1 single again because of their age and radio’s insistence on only playing “young” people. But Clear Channel-I Heart Radio should rethink that policy. “Infinity” is so catchy, and it would be fun to hear it on places like Z100 among the shrieking and babbling that accounts for 90% of today’s chart hits. I heard one guy on top 40 radio the other day who sounded like a goose honking before the foie gras man came.