An article in ABC (Oz) News "Sinéad O'Connor died from natural causes, according to report by London coroner" also mentions this:

A tribute concert for O'Connor and The Pogues frontman Shane MacGowan, who died in December, was recently announced for Carnegie Hall on March 20.

Also, Angie McMahon, an Australian singer/songwriter sang Nothing Compares 2 U at the Sydney New Year's Eve 2023 as a tribute to Sinéad O'Connor.