Porter performed at other neighborhood venues including Sista's Place and Solomon's Porch, and moved on to Harlem club St. Nick's Pub, where he maintained a weekly residency.

[12] On May 9, 2015, Porter participated in VE Day 70: A Party to Remember, a televised commemorative concert from Horse Guards Parade in London, singing "As Time Goes By".

Writing for The Daily Telegraph, Neil McCormick said, "The portly middle-aged jazzer may be the oddest pop star on the planet but he is a refreshing testament to the notion that the most important organ for musical appreciation should always be our ears.

And Porter has one of the most easy-on-the-ear voices in popular music, a creamy baritone that flows thick and smooth across a rich gateaux of juicy melody.

He would go on to perform in the annual BBC Children in Need show in November, a night dedicated to Sir Terry Wogan, who hosted it in previous years and was a fan of Porter.

[19] In October 2017 he performed the song "Mona Lisa", with Jeff Goldblum on piano, on The Graham Norton Show.

[21] On November 5, 2021, Porter released a Greatest Hits compilation album titled Still Rising - The Collection on the Blue Note label.

[27] On June 2, 2022, Porter, accompanied by the London Community Gospel Choir, sang the specially-composed song "A Life Lived with Grace" for the lighting of The Queen's Platinum Jubilee Beacons.

[32] In September 2024, Porter announced a 12-night tour of the UK, commencing in April 2025, including a night at Manchester's new Co-op Live arena.

[33] Describing his own style Porter said in a 2014 interview: "I would say Donny Hathaway, Nat King Cole, Bill Withers – I hear something of me in all of them that is similar to the culture that I grew up in i.e.

[36] In his review of Water, the BBC's Kevin Le Gendre wrote that "Gregory Porter has a voice and musicality to be reckoned with.

"[37] The New York Times described Porter as "a jazz singer of thrilling presence, a booming baritone with a gift for earthy refinement and soaring uplift" in its review of Liquid Spirit.

While on every track Porter sings with great conviction, he's more effective on lower-key compositions", but went on to say that "he's right up there with José James as the next big male vocal jazz star.

[40][41] For public appearances, Porter always wears a hat reminiscent of a newsboy cap incorporating fabric that covers his ears and chin.