Evan - who's mum is Diana Ross - shared a couple of cute snaps with his followers while he and his wife tuned into the NFL.
And despite being rumoured to be pregnant, Ashlee made sure to keep any signs of a baby bump firmly under wraps, covering up with a huge pink blanket.
In Evan's photo, Ashlee is pictured sporting an American flag jumper, cuddling up to her other half as he plants a kiss on her cheek.
Alongside his photo, Evan wrote: "#superbowl Sunday me and my love @ashleesimpsonross."
In another photo of the pair together, the singer told fans: "love her."
While watching the game, Ashlee chose to don a short blue wig - no doubt channelling her inner Katy Perry as the 'Roar' singer took to the stage for the Superbowl's half-time show.
Treating viewers to a few of her tracks including 'Roar' and 'Firework', Katy was also joined by Missy Elliott and Lenny Kravitz for her show-stopping performance.
While Britney Spears was among the celebs in the crowd at the University of Phoenix Stadium, it seems Ashlee and Evan opted to tune in from the comfort of their own home instead.
The couple are said to be expecting their first child together after multiple US outlets reported Ashlee was pregnant. However, she and Evan are yet to confirm whether such reports are true or not.
If so, this will be Ashlee's second child as she is already mum to six-year-old son Bronx Mowgli from her marriage to ex-husband and Fall Out Boy star Pete Wentz.
Ashlee's second pregnancy would follow an incredible past year for her and Evan.
Following a romantic proposal in Hawaii, the pair married in September in a stunning wedding ceremony held at Diana Ross' estate in Conneticut.
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