Los Angeles, March 11 (IANS) Singer-actress Jennifer Lopez has sparked engagement rumours after she was spotted flaunting a new sparkler on the ring finger during a romantic getaway with new beau Alex Rodriguez in Miami."She flew to Miami to meet him," an insider told usweekly.com. The "On the floor" hitmaker brought along her children -- 9-year-old twins Emme and Max. They started dating "after running into each other at an event in Los Angeles", a source said. Last weekend, the pair was spotted in Los Angeles. Rodriguez also attended one of Lopez's concerts at Planet Hollywood in Las Vegas. "They're in the same place in their lives, they both have kids around the same age," another source said.Rodriguez has two daughters, 12-year-old Natasha and 8-year-old Ella, from his previous marriage.