Four supporting acts on Ed Sheeran's US tour have abruptly quit in solidarity with rapper Macklemore, who has been dropped for making pro-Palestinian comments onstage.Irish acts Aaron Rowe and Beoga, Danish band Lukas Graham, and US artist Finneas posted on Instagram that they were pulling out.Rowe and Lukas Graham would have been replacements for Macklemore on Sheeran's remaining US dates, while Sheeran's touring band, Beoga, had been performing several songs — including some the Irish folk band co-wrote — with Sheeran around the middle of each set.Finneas is one of the acts to announce they are pulling out of The...