Bruno Mars was a surprise choice as both host and musical guest on “Saturday Night Live” last weekend. The popular singer turned out to be a smart choice as well.

The overnights (5.4 rating and 14 share) for Saturday’s telecast gave “SNL” its strongest showing in seven months, since Lindsay Lohan hosted in March.

Mars brought charm and energy to the show, admirably handling double duty. The “SNL” writers wisely played to Mars’ strengths, as shown in the delightful Pandora sketch in which the singer, playing a talented intern, mimicked the likes of Green Day, Katy Perry and Michael Jackson.

Interest in the presidential election likely contributed to the solid ratings. The cold open with a spoof of the recent debate between President Obama and Mitt Romney. Jason Sudeikis as Romney carried the sketch which featured a surprise appearance by Tom Hanks (without F-bombs).

Still, as The Hollywood Reporter noted, the ratings fell far short of the ratings during the last presidential election. Sarah Palin made a cameo during the comparable episode (Oct. 18, 2008) ahead of the last vote, appearing alongside her celebrated impersonator Tina Fey and bringing in a 10.7 overnight rating with households — a 14-year high for the show.

Next up: Comedian Louis C.K. will host on Nov. 3 with musical guest fun. Louie wrote the “Saturday TV Fun House” segment for years.