Killeen gospel singer Jokiaâs latest release âYahwehâ has topped a Billboard chart for the first time this week. Although the song has been featured on the charts for 37 weeks, Jokia said to be No. 1 on the Billboard Gospel Airplay chart is surreal. âJust because there are so many amazing artists that have a really great legacy who have been featured on that list,â said Jokia, whose full name is Jokia Williams. âTo be part of that legacy is definitely surreal.â Killeen gospel singer Jokiaâs latest release âYahwehâ has topped a Billboard chart for the first time this week.