After a month-long vocal battle royale, R&B charmer Mark Michael Garcia emerged as the grand champion of the All-Star Grand Resbak edition of Tawag ng Tanghalan at its grand finals on It’s Showtime last Saturday (December 21).

WATCH: Mark Michael Garcia, itinanghal bilang TNT All Star Grand Resbak Champion

Mark Michael earned a total average score of 54.24% from the combined hurado scores and public votes, beating his opponent Jex de Castro’s 45.76%.

As the grand champion, Mark Michael won P300,000 (tax free), a business franchise from Potato Giant, a recording contract from TNT Records, a management contract from ABS-CBN, and a trophy created by renowned Filipino visual artist Toym Imao.

In the final round, the Malabon native earned a standing ovation from the judges and the madlang people after performing a powerful medley of Chicago's hits “You’re the Inspiration,” “Hard to Say I’m Sorry,” and “Glory of Love."

WATCH: Mark Michael Garcia receives standing ovation from TNT Hurados and madlang people 

A Year 3 grand finalist and Year 2 semifinalist, Mark Michael beat all the returning contenders in the Grand Resbak edition, which brought together the competition's singers from Years 1 to 3.

Meanwhile, TNT will also open the New Year with a bang as it launches its fourth year in January.

Watch out for more surprises from It’s Showtime, which airs from Mondays to Saturdays on ABS-CBN and ABS-CBN HD (Sky Cable ch 167).