BOSTON — The music was blaring in the clubhouse and Boston utility player Brock Holt was holding a microphone, acting like a DJ.

The defending World Series champion Red Sox were clearly ready to relax and have fun again.

Boston Red Sox’s Andrew Benintendi drops to a knee on his two-RBI double during the seventh inning of a baseball game against the Kansas City Royals at Fenway Park in Boston, Monday, Aug. 5, 2019. At left is Kansas City Royals catcher Meibrys Viloria. (AP Photo/Charles Krupa)

Rick Porcello pitched six innings of one-run ball, Sam Travis hit a two-run homer and the Red Sox halted their eight-game losing streak with a 7-5 victory over the struggling Kansas City Royals on Monday night.

“That’s kind of where we need to be in general,” Porcello said. “Some pressure when you start losing, especially with the talented team we have. That’s kind of how we need to be every day, kind of relaxed and focus on the task in hand.”

Rafael Devers added a solo shot for the Red Sox. Travis’ gave Boston a homer in a club-record 18 straight games in Fenway Park. The old mark was set in 1969.

Bubba Starling, Meibrys Viloria and Cheslor Cuthbert each went deep for Kansas City, with Viloria’s his first homer in the majors and Starling’s a three-run shot.

It was the seventh straight loss for the Royals, who had a 10-game skid in the season’s first two weeks.

Porcello (10-8), who smashed a pair of TV monitors in the Fenway dugout in frustration in his last start, gave up four hits, walked two and struck out five.

The only thing he broke this time was the defending World Series champions’ losing streak. It was their first win since beating the rival Yankees at home on July 27 and moved them 5 ½ games behind Tampa Bay for the AL’s second wild-card spot.

“Obviously we had a rough week, but we still believe in ourselves,” Devers said through a translator.

The longest skid for a defending champ is 11 games, done by both the 1998 then-Florida Marlins (twice) and the 1986 Royals.

Boston’s starters had a 10.95 ERA over the eight-game skid.

Brandon Workman got the final three outs for his sixth save.

Making his fourth start since being acquired from the Chicago Cubs in July, Mike Montgomery (1-5) gave up four runs — two earned — over five innings and fell to 0-3 since joining the Royals.

“I thought he threw the ball fine. He did a nice job,” Royals manager Ned Yost said. “He gave us a chance to win the game.”

In their first time through the order against Montgomery, the Red Sox struck out five times. Boston jumped ahead with three runs the second time.

Mookie Betts opened the third inning with a walk and Devers singled. Shortstop Nick Lopez booted Xander Bogaerts’ grounder, with Betts scoring from third.

After Andrew Benintendi bounced into a double play, Travis hit his shot into the Green Monster seats. Devers hit his over the Monster in the fifth.

Benintendi’s two-run double highlighted a three-run seventh that made it 7-2.

QUICK WORK

Viloria’s homer went over the Monster and the ball bounced onto the field, where it rolled it down the line and was picked up by a ball girl, who gave it to a child in the first row.

Some in the Royals dugout yelled and finally got her attention before throwing her a ball. She quickly went over and swapped it.

“(I) wasn’t even aware of that but (I’m) glad they gave it to (me),” Viloria said through a translator.

CRUNCHING NUMBERS

Boston manager Alex Cora knows his team’s in a big hole.

“We’ve got to win series. That’s the bottom line,” he said before the game. “If you win every series from now on, you put yourself in a good spot. If we do something great as far as math and percentages and all that, I do believe that we do need a streak of putting good pitching together. We can’t talk about it, ‘We’ll be fine. We’ll be fine.’ Right now, we’re not fine.”

TRAINER’S ROOM

Royals: INF Adalberto Mondesi (left shoulder) is with the team doing his rehab work, but Yost said it’s likely a while before he returns to the lineup.

Red Sox: DH J.D. Martinez was scratched from the lineup due to back tightness. . Cora and a trainer came out to check on Betts when he was on first in the seventh. He stayed in but limped around the bases on Benintendi’s double and was removed with a left shin contusion.

UP NEXT

Royals: RHP Jakob Junis (6-10, 5.03 ERA) is slated to start on Tuesday. He’s pitched at least six innings in 11 of his last 14 starts.

Red Sox: RHP Andrew Cashner (10-6, 4.51) is set to start for Boston and is looking to set a career high in wins.