one-hit wonder
any entity that achieves mainstream popularity, often for only one piece of work, and becomes known among the general public solely for that momentary success
en-GB/wʌn - ˈhɪt ˈwʌndə/
en-US/ˈwʌn - ˈhɪt ˈwʌndɚ/
any entity that achieves mainstream popularity, often for only one piece of work, and becomes known among the general public solely for that momentary success