Lovelyz' Kei is the voice behind "Let's Pray", the 3rd OST for MBN's 'Rich Man'.

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"Let's Pray" is about determination to live life the best you can every day, and it's the perfect theme song for hopeful college graduate Kim Bo Ra (played by Ha Yeon Soo). With her exceptional memory and optimistic attitude, Kim Bo Ra prays to achieve her dreams of working at the 'Next In' gaming company.

Check out Kei's "Let's Pray" above! Have you been watching 'Rich Man'?