“Justin Bieber: All Around the World” (NBC/WILL HART/NBC)

You’ve probably already read about how poorly Justin Bieber’s two-night NBC special “Justin Bieber: All Around the World” following him him on his “whirlwind” global tour, and plugging his new album dropping this week, did in the ratings relative to its broadcast TV competition.

Wednesday night’s Bieber-cast clocked just 3.02 million viewers, finishing in the 8 p.m. hour behind CBS’s new “Dogs in the City” (5 million), Fox’s “So You Think You Can Dance” (6.8 million), and ABC’s “The Middle” (4.0 million) and “Suburgatory” (3.3 million) reruns.

Likewise, Thursday night’s Bieber-cast scored an average of 3.1 million viewers, coming in behind ABC’s Jimmy Kimmel pre-NBA play special (3.2 million) and NBA walk-up show (6.4 million), behind CBS’s repeats of “Big Bang Theory” (8.4 million) and “2 Broke Girls” (7.1 million), and even Fox’s dating competition “Take Me Out” (3.2 million).

But maybe you did not know that Biebs scored fewer viewers than Bill O’Reilly both nights? FNC’s “The O’Reilly Factor” averaged about 3.3 million viewers each night at 8.

The teenaged YouTube sensation-turned-pop star did, however, beat O’Reilly both nights among O’Reilly’s target audience of 25-54 year old viewers. Biebs snagged about twice as many 25-54 year olds as did O’Reilly each night.

And, O’Reilly fared better among viewers aged 50 and older.

But, turns out, around half of Biebs’s audience each night was aged 50 years or older.

Wednesday night the 18-year-old averaged 1.4 million viewers aged 50 and up; Thursday that climbed to 1.6 million.