The chart ranks the top dance tracks worldwide, based on monitored airplay across 200-plus dance stations in more than 30 countries. John Summit Angel Rivera / Courtesy of The Darkroom Trending on Billboard John Summit and David Guetta continue to impact the WARM Global Dance Radio chart , as each artist places four songs on the latest ranking (dated May 9), the most of any acts this week. Explore See latest videos, charts and news Summit appears with “All the Time,” with the Chainsmokers and Ilsey (holding at its No. 13 high); “Shades of Blue,” with Devault and Julia Church (up 42-25); “Shadows,” with LAVINIA (down 30-39, after reaching No. 8); and “Chica 305,” with Feid (68-70). Guetta, meanwhile, charts with “Save Me Tonight,” with Jennifer Lopez (up 8-7); “Awake,” with Afrojack and Sia (34-17); “Upside Down (Extended Mix),” with Jaden Bojsen (25-40); and “Crazy” (released under his Jack Back alias), with Matt Sassari featuring Amira Eldine (69-54).…