MIRANDA Lambert is officially off the market. The singer, 27, married longtime love Blake Shelton late Saturday evening at Texas Don Strange Ranch. According to Us Weekly magazine, Lambert walked down the aisle in front of 550 family members and friends including Reba McEntire, Cee Lo Green, Martina McBride, Dierks Bentley, Charles Kelly and the Bellamy Brothers. Im married to my best friend Lambert said after the ceremony. Looking forward to a lifetime of laughter. SS I wanted to be married to Miranda the day I proposed. Finally, its official said Shelton. The couple have been dating since 2006 and got engaged last may. This is the first marriage for Lambert; Shelton was married to Kaynette Williams from 2003-2006. -SS