The band fun, which burst onto the scene in 2012 with massive hits such as “We Are Young,” “Some Nights” and “Carry On” will perform with guests Tegan and Sara at 7:30 p.m. Aug. 27 at Harveys Outdoor Arena as part of the Lake Tahoe Summer Concert Series. Tickets, which go on sale Feb. 15, will cost $49.50. Details at www.ticketmaster.com.