After being sidelined for a few weeks while undergoing a medical procedure, Levon Helm will return to his Woodstock,NY-area barn for two Midnight Rambles in March. Both shows feature some heavy hitters: On March 10 Mumford & Sons will open for Levon Helm Band while on March 31 Los Lobos will support the Band drummer and his group. As previously reported, Warren Haynes and Donald Fagen will fill in for Helm at the Midnight Ramble this weekend.