WASHINGTON— Conservatives accounted for around 4 in 5 voters Saturday as Nevada Republicans chose their presidential candidates, a poll of people entering the caucuses showed, tying Iowa as the most conservative group of GOP voters so far this year.

Around 3 in 4 Nevada voters said they were tea party supporters, according to preliminary results of the survey. That was the highest proportion of the five states that have now held their GOP presidential contests.

The advertising agencies who create the commercials that air during the Super Bowl get plenty of publicity, and in the weeks leading up to Sunday's game, companiesreleased several advance adsto a flurry of attention. But what about the people who make the music used in the ads?

Yessian Musicwas founded in 1970 in a converted bait shop in Farmington, Mich., a Detroit suburb. The company, which now has offices in L.A., New York and Germany and has upwards of 25 full-time employees, is run by original founder Dan Yessian and his two sons, Michael and Brian Yessian. This year, they've put their tunes to five Super Bowl commercials.

Yessian is responsible for the soundtrack to national ads promoting Budweiser, a Hyundai TV/web project, NBC's "The Voice" and RAM. An ad for Cleveland Clinic Hospitals, which will air in the Midwest market, also uses Yessian's musical offerings.