Sing, a fast-casual concept offering Singaporean cuisine, closed its Heights restaurant at 718 W. 18th St., Ste. D, on Nov. 3. The restaurant opened about a year ago, but its executive chef Cuc Lam left the operation in January. "Our journey together at SING is now at an end. Thank you for making it so much fun! We hope you enjoyed every bite, and we look forward to our next adventure together," a message posted to its website reads. www.eatcravesing.com