updated 09/18/2013 AT 11:25 AM ET
•originally published 09/18/2013 AT 7:45 AM ET
These couples have dancing fever!
Inside the venue, the two “were in good spirits,” an onlooker told PEOPLE. Clad in a flannel shirt, Osbourne, 27, and his wife, 26, held court all night at a table near the entrance but refrained from drinking.
While Lisa hung out with her husband’s pro partner (and the night’s host) Cheryl Burke for a bit, the couple also “had a little bit of lovey-dovey time whispering in each other’s ears and sharing laughs” later in the night, adds the source.
A few tables away, fellow contestant Leah Remini, 43, and her husband Angelo Pagan celebrated her first night on the show with glasses of bubbly.
“She seemed to really be enjoying life,” says the source.