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RIO DE JANEIRO -- The U.S. swim team is singing again.Led by Michael Phelps, the Americans have done a follow-up to their 2012 hit video in which the Olympians lip-synced to Call Me Maybe.This time, the swimmers did an extended video version of Carpool Karaoke, mimicking the popular segment on James Cordens late-night TV talk show.Phelps tweeted a link to the YouTube video, which had more than 300,000 views early Friday. The 18-time Olympic gold medalist takes a turn at the wheel, at one point answering a call from his mother, Debbie, and saying he cant talk because theyre doing karaoke in the car.The video begins with Elizabeth Beisel and Caleb Dressel clad in their suits and caps climbing into the car with teammates.In another segment, Phelps asks, Is anyone going to play music today? and teammate Allison Schmitt turns on the radio. The video cuts to Missy Franklin and Maya DiRado hearing the opening notes of Call Me Maybe. They look at each other and Franklin says, Get it off.Instead, she and DiRado, wearing backward ball caps, lead the other women in a finger-snapping version of Fifth Harmonys BO$$. Longtime friends Phelps and Schmitt return later for some full-throated crooning of Zac Brown Bands Chicken Fried, while their teammates hold up an American flag in the back seat. The songs lyrics include the verse, I thank God for my life and for the stars and stripes.Katie Ledecky and Anthony Ervin briefly share the front seat before Ledecky says, Im out. I dont feel safe driving four other Olympians.Sprinter Simone Manuel sings a snippet of One Directions What Makes You Beautiful.The singing is interspersed with the swimmers interacting with people on the street and at a Chick-fil-A drive-through, where Ryan Lochte wonders aloud if theres a 2-for-1 special on the sauces.The seven-minute video closes with the team singing a spirited version of the Miley Cyrus hit Party in the U.S.A.The video was filmed during the teams pre-Olympic training camp in Atlanta. THOUSAND OAKS, Calif. -- Tom Pernice Jr. had four straight birdies and shot an 8-under 64 on Saturday for a share of the PowerShares QQQ Championship lead with fellow former UCLA player Brandt Jobe.Jobe had a 66 to match Pernice at 11-under 133 at Sherwood in the PGA Tour Champions playoff opener.Pernice began the run on the par-5 11th and birdied the par-3 12th, par-5 13th and par-4 14th. The four-time tour winner birdied another par 5 on 16 and closed with two pars.Not as much wind today, so that made a little bit of difference, Pernice said. It stayed pretty warm once we got going, and the ball was carrying well.Jobe had eight birdies and two bogeys.Im kind of managing my game right now, Jobe said. I have played the par 5s well, put the ball in the fairway, hit some good tee shots, which sets up the hole, so thats kind of been the key this week.First-round leader Colin Montgomerie (69) was a stroke back along with Rocco Mediate (65) and Olin Browne (66).Im ecstatic with how I played the last two days, Mediate said. Im actually shocked a little. I havent played in a while, backs been a little messy, but its better. Yeah, I cant wait to go tomorrow and see what happens.Mediate played alongside Pernice and Jay and matched Pernice with birdies on Nos. 11-14.We had a great group, Pernice said. Roccos personality ... when things are going good, the group just kind of continues on, and he keeps everybody kind of loose and entertaining. Jay and I have been close frriends for a long time and have had some battles, and to have him and then Rocco and everybody playing well, it was a lot of fun.dddddddddddd.Fred Couples was tied for 22nd at 4 under after a 72 in in his first tournament in eight months. The 57-year-old Couples was sidelined by a chronic back injury.Tour leader Bernhard Langer withdrew before the start Friday because of a left knee injury.Langer leads the tour with four victories and has wrapped up the season money title with $2,697,459. The 59-year-old German star tops the Charles Schwab Cup Playoffs standings and has a big enough advantage over second-place Miguel Angel Jimenez that he will keep the No. 1 spot without playing this week.The top 72 players on the money list earned spots at Sherwood. The playoff field will be cut to 54 for the Dominion Charity Classic next week in Richmond, Virginia, and to 36 for the Charles Schwab Cup Championship the follow week in Scottsdale, Arizona. Each dollar earned in the first two events is worth two points and will be added to the regular-season total. At the Charles Schwab Championship, points will be reset so the top five only have to win to capture the Charles Schwab Cup.Jimenez was 4 under after a 69.John Daly had a 76 to drop into a tie for 53rd at 3 over. He qualified 70th and has five top-25 finishes in 14 starts since turning 50. ' ' '