It's an opera programme hence the opera singer. It's not like she'll be replacing Patti on the tour guys! Relax! I do think it would have been operatic enough (and better) with just Meat singing with that arrangement, but still thoroughly enjoyed the performance.
Anyway, what's going to happen next week though (aside from Bernie winning)?! It'll be the last fix of Meat on TV here (that we know of) and then we have to wait exactly 2 months for the album!!

It's gonna be tough!
At least there's still twitter