Joe Jonas and "Game of Thrones" actress Sophie Turner sparked romance rumors over the weekend when the two were spotted getting cozy at a pre-MTV Europe Music Awards event.

The two were spotted at Awards King of Leon concert in Rotterdam, Netherlands on Saturday night. The DNCE member Jonas and actress were seen getting close.

In pictures obtained by ET, Joe was seen putting his arms around Sophie as they sat by fellow DNCE members.

In one picture, it appears that the singer also leaned in for a kiss.

An eyewitness told the People magazine, that she saw the duo was kissing during the concert.

"The two or three times I was watching they were kissing," the source tells the magazine.

"She was all smiley and he looked really sweet. They seemed pretty comfortable."

The source further added that they "were really close."

This is not the first time that the 27-year-old  Joe Jonas and 20-year-old Sophie Turner were spotted together. They were seen together in Halloween where Jonas was dressed as a Dalmatian and Sophie wearing pink-sequined bunny ears.

When ET spoke to British actress in August at Variety's Young Hollywood event, Turner had said that she has no time for her personal life as she as hectic GoT schedules.

She said she tries to "stay in touch" with her friends and tries to take as much of "me time" as possible. She also mentioned that she meditates and is trying to maintain a balance in life.

Last month, a source told ET that Jonas was serious with Brazilian model Daiane Sodre after they dated throughout summer and his band members like her. Though neither has confirmed their relationship rumors .

Sophie Turner plays Sansa Stark in popular HBO drama series "Game of Thrones" and was spotted shooting for the next season of the show.