Numetal heavyweight ("Take me to Your Leader") that doesn't play pop, despite its name
9A
Prestigious name in pianos
11A
Actress Tippi ___, who played a Debussy Arabesque in Hitchcock's "The Birds")
12A
Justin who won a Latin Grammy
15A
Influential Austin band which was a "critical favorite" and thus not very popular; also a facial feature of Sammy Davis, Jr.
17A
"I've seen all good people turn their head ___ day/So satisfied I'm on my way" (Yes, "I've Seen All Good People")
18A
"___ You Experienced" (Jimi Hendrix) (Rolling Stone's 30th greatest album of all time)
19A
Sound accompanying a wagging finger
20A
Rocker and right wing lunatic Nugent
Down
1D
"P-P-Pumps on the gas 140 on the ___" (NIcki Minaj, "I Love My Range Rover")
2D
"And Jet I thought the major was a lady suffrag____" (Paul McCartney, "Jet")
3D
Screech from a microphone
4D
Initial cue from a conductor; also a leading jazz magazine since 1934
5D
A Gershwin
6D
"___ major dude with half a heart surely will tell you my friend/___ minor world that breaks apart falls together again" (Steely Dan, "__ Major Dude Will Tell You")
8D
"I got down on my ___/and I pretend to pray" (The Mamas and the Papas, "California Dreaming")
10D
Like U2
13D
Jane , character whose name is a homonym for " on the G String" (Bach)
14D
Need for a saxophonist
15D
"I ___ knocked down ..." (Chumbawumba, "Tubthumping")