Conversation so far:
Was D'Angelo's album, Black Messiah, met with universal acclaim?
D'Angelo's album Black Messiah was met with universal acclaim from critics and it currently has a 95/100 mean score on review aggregator Metacritic.
Who are The Vanguard in relation to D'Angelo?
D'Angelo's band, The Vanguard, includes bassist Chris Dave; bassist Pino Palladino; guitarists Jesse Johnson and Isaiah Sharkey; vocalists Kendra Foster, Jermaine Holmes, and Charles Middleton; and keyboardist Cleo Sample.
When did D'Angelo sing the song Sometimes it Snows in April?
D'Angelo performed Prince's Sometimes it Snows in April on The Tonight Show Starring Jimmy Fallon in April 2016 accompanied by Maya Rudolph and Gretchen Lieberum as a tribute to Prince.

Question: When did he sing in Zurich and Brussels?
Self-contained rewrite: When did D'Angelo sing in Zurich and Brussels?