A Roberts Hawaii bus was packed with Bruno Mars maniacs at 4:15 p.m. But by 4:50 p.m., the bus was empty.

"We got here, there was no traffic on the freeway at all," Chynna Kitagawa, a fan from Maui, said. 

Many people concerned about traffic: caught shuttles, grabbed rides or came early. They tell KITV4 no major delays on the roads overall.

Caleb, a concert goer, said it only took him 15 minutes to get to the stadium. 

And maybe that added to the excitement. A line of people snaking around the grounds in front of Aloha Stadium, sharing love for the local boy turned superstar. 

Thursday night's concert is the first of Bruno Mars' three concerts. The other two are Saturday and Sunday. We do not know what traffic will be like then, but stadium officials are encouraging concert goers to plan ahead.