One Direction singers Zayn Malik and Louis Tomlinson were spotted partying in Chicago without their girlfriends Perrie Edwards and Eleanor Calder during the "Where We Are" tour 2014. Is Harry Styles still mad about the leaked video of the One Direction boys smoking weed in Peru?

Zayn Malik and Louis Tomlinson have been keeping a low profile since their smoking weed video scandal in Peru, thanks in part to the presence of their girlfriends Perrie Edwards and Eleanor Calder (Zayn and Perrie are actually engaged!). Eleanor joined the One Direction boys for the NYC leg of their tour, but eventually flew back to the UK with Liam Payne's girlfriend Sophia Smith for the V Festival. Zayn has been seeing his fiancee Perrie Edwards at every free moment he has during the tour.

According to Unreality TV, Zayn Malik and Louis Tomlinson finally let loose this week and were spotted at a Chicago nightclub, dancing and drinking the night away with fellow One Direction singer Liam Payne, who was celebrating his 21st birthday.

None of their girlfriends were present, as they all have flown back across the pond. Hopefully the boys didn't get into too much trouble without their other halves watching over them, especially considering the rumors that Harry Styles is still holding a grudge over Zayn and Louis for the leaked video of them smoking weed in Peru!

According to the Mirror, the One Direction boys are booking separate hotels during their tour now. In New York City earlier this month, the Mirror reported where the boys stayed:

"While Niall and [Zayn Malik] slept happily at the Mandarin Oriental Hotel, Hazza travelled another three minutes away to the Ameritania. Slightly further away was Louis and his floppy hair at The Standard High Line and Liam finished the pack down at the Soho Grand. It didn't stop there though because they all started off at the Fairmont Battery Wharf Hotel in Boston, before Hazza moved over to the Four Seasons."

According to Unreality TV, Harry Styles and Zayn Malik are especially at odds with one another, since the leaked video hit the Internet.

"Harry thinks the others are immature and not as driven as him, while Louis and [Zayn Malik] get irritated with his lectures."

The Inquisitr also reported earlier this summer: "It's Zayn and Louis against the others - Harry, Liam and Niall are furious. They had a dramatic meeting last week and Harry was the first to lash out, telling them they'd messed everything up. But Zayn turned it around on Harry and accused him of only being interested in himself. Poor Niall has been in tears - he's worried this could be the end of the band."

Hopefully these are all just rumors, and the 1D lads have put the past behind them! One Direction will be heading home to the UK and Ireland this week to enjoy a ten day break from touring. The band will then return to the US, where they'll finish their "Where We Are" tour in October.