High School Musical star Monique Coleman revealed that Zac Efron was unable to participate in the actual singalong due to limited Wi-Fi capabilities.
And because the star didn’t join the High School Musical reunion until the last minute, he was more than likely unable to make arrangements for better internet access.
Coleman told TMZ that Efron is apparently still in Papua New Guinea where he’s filming his new Quibi series, Killing Zac Efron.