Topeka and Lawrence have been flirting with each other for decades. “Lawrence put a ring on it,” said Topeka Mayor Michelle De La Isla after singing her version of “Single Ladies” by Beyoncé. De La Isla’s version of the song was encouraging all the “single cities” in northeast Kansas to get together, which is happening as De La Isla and Lawrence Mayor Brad Finkeldei prepare for a road trip. The two mayors were joined by members of the Lawrence Chamber and the Greater Topeka Partnership to announce a joint trip to learn from the Arkansas cities of Bentonville, Fayetteville and Rogers. Those three cities could be an educational guide for how Lawrence and Topeka can grow together like the northwest Arkansas region has, multiple speakers said at Thursday’s joint news conference.