MUSIC: In case you were jonesing to go to another overpriced classic rock concert, Lynyrd Skynyrd can help you with that. They're playing at the Molson Amphitheatre this evening, joined by rocker and clever lyricist Kid Rock and one third of Run-D.M.C. Molson Amphitheatre (909 Lakeshore Boulevard West), 6:30 p.m., $25.50–$75. POLITICS: If you have U.S. citizenship and haven't yet registered to vote in the upcoming general election, never fear. Democrats Abroad is having......