The folks at 414 Entertainment and promotions company JDLive announced today that they are teaming up to throw a big party and outdoor concert in downtown Lansing headlined by major-label, melodic-rock upstarts My Favorite Highway and The Elms. The party, dubbed �Riverfest,� is from 3 p.m. to midnight on the �river banks near Impression 5 Museum� on Saturday, Sept. 19. Also playing are local favorites The Hard Lessons, a power-pop trio that first took root at Michigan State University in the early �00s before transplanting to Detroit. You�ve probably heard the trio�s tunes all over the Impact and seen husband and wife front-couple Augie and Korin Visocchi�s mugs all over the music pages of free rags around the state of Michigan. Also on the bill are Detroit�s Souldub (rap-metal-reggae) and The Dirty Americans (rock �n� roll) and Lansing�s PHILTHY (positive hip-hop), Narc Out the Reds (indie-rock) and Res Publica (nu-reggae). The event, which starts with an MSU vs. Notre Dame tailgate session at 3 p.m., will also feature a food court, open air bar, skateboarding and break dancing demos and an after party at Harem Urban Lounge. Advance tickets are $10 and available at Tanzmania Tanning in Frandor, Music Manor, The Exchange and at www.lansingriverfest.com.