Music

Previews by Ann Powers (A.P.)., Richard Cromelin (R.C.), Casey Dolan (C.D.), Randy Lewis (R.L.) andDon Heckman (D.H.).

Stagecoach Year 2 of the country fest in Indio, expanded now to three days, wraps up with a show that brings one of contemporary country’s biggest sellers, Tim McGraw, to the main stage; notable names such as Carrie Underwood, Gretchen Wilson, Trace Adkins and Big & Rich; and, further down the lineup, certifiable legends from country (George Jones, Charlie Louvin) and bluegrass (Ralph Stanley and the Clinch Mountain Boys). (R.L.) Empire Polo Field, Empire Polo Field, Indio. Today, noon. $95 (one day), $249 (three-day pass). (323) 930-7100.

Alicia Keys With the Grammy-winning “No One” sparking big sales for her “As I Am” album, the New York singer-songwriter remains a breed apart from the disposable divas who share the charts with her, and a rare combination of artful expression and commercial appeal. (R.C.) Honda Center, 2695 E. Katella Ave., Anaheim. Today, 7:30 p.m. $39.50-$125. (714) 704-2500. Also at Staples Center, 1111 S. Figueroa St., L.A. Mon., 7:30 p.m. $39.50 - $125. (213) 480-3232.

Aggrolites This L.A. outfit keeps the riddims pure on its latest album, “Reggae Hit L.A.,” demonstrating that Jamaica isn’t the only place to incubate loping beats, and that Toots & the Maytals isn’t the only reggae act that knows how to inject a bit of soul and funk into the reggae template. (R.L.) Saint Rocke, 142 Pacific Coast Highway, Hermosa Beach. Mon., 9 p.m. $20. (310) 372-0035.

Gran Ronde The ’80s are alive and well. With the eighth notes, the anthemic choruses, the metallic reverb and particularly Chris Pearson’s anguished lead vocals, you may be forgiven for thinking of early U2. And like that band, this one may be destined for bigger things than a month of May Mondays at Spaceland. (C.D.) Spaceland, 1717 Silver Lake Blvd., Silver Lake. Tue., 8 p.m. $8. (323) 661-4380.

Liam Finn The New Zealand alt-rocker, the son of Crowded House’s Neil Finn, shares his dad’s affinity for melodic, instantly memorable hooks, and in concert is a fearless one-man band who employs not just his own guitar and keyboard work but intriguing prerecorded loops and samples, as well as a drum kit he’ll jump behind when he needs to bash out a live backbeat. With Laura Veirs. (R.L.) The Echo, 1822 Sunset Blvd., L.A.. Tue., 8 p.m. $14. (213) 413-8200.