There is a small upper crust of acts who have been playing huge venues for decades and are still able to fill arenas and stadiums. The shortlist would include the Rolling Stones, Eagles, Billy Joel, The Who, Springsteen and Elton John; each artist has been consistently selling out gigs since the 1970s. But right below that collection of rock royalty sit the larger swath of artists who have likewise been touring for years but are probably unable to fill venues in the same way. By cleverly joining forces, artists like Jackson Browne and James Taylor, both world-class touring veterans, are able to ensure robust ticket sales, especially among their fanbase hesitant about COVID. And then there is a group of newer artists that has been steadily building a fanbase, and will likely be touring for ...