William Shatner appears on a new album of prog rock with Nik Turner coming out soon.
https://soundcloud.com/cleopatra-recs/the-prog-collective-in-our
His last album had guest musicians like Bootsy Collins, Dave Davies, and Peter Frampton
He just keeps trekking on.
William Shatner last album had Common People which was very good plus a spoken poem to music of sorts about growing up in Montreal. Good stuff, not schlock!
He did a duo of Common People with Joe Jackson on Letterman or some such. Can be found on youtube https://www.google.com/search?q=Common+People+with+Joe+Jackson&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=rcs