Burundi-born striker Saido Berahino's double inspired West Bromwich Albion to a 4-0 victory that sent promoted Burnley to the foot of the Premier League table on Sunday.
After Craig Dawson had broken the deadlock, England Under-21 international Berahino scored either side of half-time and Graham Dorrans claimed a late goal as West Brom recorded their first home win of the season.
Following last weekend's 1-0 victory at Tottenham Hotspur and the mid-week success against Hull City in the League Cup, new West Brom manager Alan Irvine has led his side to three consecutive victories.
"We were terrific," said Irvine, whose side play Liverpool and Manchester United in their next two matches.
"I believe we have got a great group of lads, but I also know how hard it is going to be to win games in this league. We will not get carried away."
Burnley are still without a win since returning to the top flight and have not scored since the season's opening day.
They now sit bottom of the table, below Newcastle United on goal difference, while West Brom moved up to 10th place, level on points with seventh-place Manchester United.
"We never got started and never got to grips," Burnley manager Sean Dyche told Sky Sports. "It's important we grow and learn from it."
After bossing the early exchanges at The Hawthorns, the hosts went ahead in the 30th minute when Dawson met Chris Brunt's right-wing corner with a downward header at the back post to claim his first West Brom goal.
Having drawn their three previous games 0-0, it was the first goal Burnley had conceded in four matches.
Burnley goalkeeper Tom Heaton then had to tip over a 25-yard shot by the influential Dorrans, before West Brom made it 2-0 in first-half stoppage time.
The goal also stemmed from a corner, with James Morrison's delivery from the left flicked on at the near post by Dorrans for Berahino to nod in from barely a yard at the far post.
Dyche introduced Ashley Barnes and on-loan Chelsea midfielder Nathaniel Chalobah at half-time, but within 11 minutes the game was over as West Brom scored again.
Dorrans was again the creator with a through ball for Berahinho, who angled a low shot across Heaton and into the bottom-left corner.
West Brom goalkeeper Ben Foster produced an alert save to repel a header by Lukas Jutkiewicz, but Dorrans had the final say, sweeping a low shot past Heaton from substitute Cristian Gamboa's right-wing cut-back.