Nice! All business class. Not a bad seat on the plane.
The Gardens By The Bay is a must - amazing tropical paradise.
Be sure to visit the bar on the roof of the iconic casino, Sands Marina Bay - check out the mall too - very high end stuff. i tried on a $28,000 watch ?
Club Street is a cacophony of bars and restaurants. You'll need at least 2 nights there.
There is a traditional Asian mall too (Chinatown Street Market - lots of fun, bring cash and negotiate - don;t pay sticker for anything).
Super Jeally - Singapore is great.