The Los Angeles County Fair in Pomona has yet to announce its concert lineup for this September, but it should be out fairly soon -- maybe even later this weekend. In the meantime, Ticketmaster has posted a couple of the acts in advance: Sugarland on Sept. 6 (I think that must be a country act, which explains why I haven't heard of them) and alternative artists Lifehouse and Gavin Rossdale on Sept. 28. Lifehouse has played at the Fair twice previously, and they are pretty good.
It looks like the Fair will continue to have its usual share of monster trucks (Sept. 11) and bull riders (Sept. 25) on Thursday nights, too. The Fair runs Sept. 5-28, and there are typically concerts at the grandstand stage on Friday, Saturday and Sunday nights, with a pretty diverse lineup of musical acts.