Chicago brother-sister duo Wild Belle remains relatively overlooked, despite their enjoyably sunny debut LP, Isles, which dropped on Columbia in March. They toured extensively last year, but this summer they make their first real festival run, with a strong string of gigs at Lollapalooza, Austin City Limits, Sasquatch and Outside Lands. Their optimistic mix of reggae, indie-rock and West African influences should provide the perfect soundtrack for a breezy summer day outside with thousands of your closest friends.