WABASH – The Honeywell Center in Wabash will be a tour stop for Colbie Caillat and Gavin DeGraw when their co-headlining summer tour arrives Aug. 4 at 7:30 p.m. Tickets go on sale May 15 at 8 a.m. Multi-platinum, two-time Grammy Award winning singer/songwriter Caillat and platinum artist DeGraw launch their summer tour May 25 in South Carolina. Both artists will showcase their 2011 album releases while on tour. Caillat’s set will include new songs plus material from all three of her albums: “Coco,” “Beakthrough” and “All of You,” which features the hit tracks “I Do,” “Brighter Than the Sun” and “Favorite Song.” Billboard named Caillat its “Breakthrough Artist of the Year,” when the hit “Bubbly,” from her 2007 debut album, became one of the best-selling digital tracks of all time. Her 2009 album “Breakthrough” earned her four Grammy nominations, of which she won two for her collaborations with Jason Mraz and Taylor Swift. “Brighter Than the Sun,” the second hit from “All of You,” has been featured in more than 21 films, TV shows and commercials, making it the most licensed new song this decade. DeGraw’s set will include music from his third studio album, “Sweeter,” including his platinum selling hit single “Not Over You,” and his just-released new single “Sweeter.” DeGraw is no stranger to the top of the charts, he first broke through with the 2003 release of his debut album, “Chariot,” which sold more than a million copies, earned platinum certification, and yielded three hit singles: “I Don’t Want To Be,” “Follow Through” and the title-track, “Chariot.” Tickets are $27, $47, $67 and $100, and may be purchased at the box office from 8 a.m. to 5 p.m. Monday through Friday by calling 260-563-1102 or by visiting www.honeywellcenter.org