Casual register. Standard reading is jìngbào - jìng is the adjectival 'strong/powerful' reading (as in qiángjìng, jìnglǚ); jìnbào is also very commonly heard. Heavily used in mainland marketing and clickbait headlines for music tracks, sports moments, and gossip - basically any content the writer wants to brand as 'fire.'
memory
劲 (jìng) = strong/powerful + 爆 (bào) = to explode → 'powerful enough to burst.' Easy mnemonic for the 'explosively exciting' meaning.
