If you're a Rihanna fan, you'll probably want to check out Rihanna 777 (7 p.m., Fox/Ch. 13), which features Rihanna jetting to seven countries to perform seven concerts in seven days, traveling on a Boeing 777.Personally, if my daughters were still at an impressionable age, I'd be a bit uncomfortable if they were Rihanna fans. At the very least, we'd talk about how it's not a good thing to go back to the boyfriend who beat you up.A role model Rihanna is not.Elsewhere on TV ...How I Met Your Mother (7 p.m., CBS/Ch. 2): Barney bonds with Robin's father.Dancing with the Stars (7 p.m., ABC/Ch. 4): The remaining contestants perform.The Voice (7 p.m., Ch. 5): The remaining 16 singers perform.Defiance (7 and 9 p.m., Syfy): Kenya tries to help.Rules of Engagement (7:30 p.m., CBS/Ch. 2): Russell is unhappy with his new assistant.90210 (8 p.m., CW/Ch. 30): Silver gets some news from her doctor.Mike & Molly (8:30 p.m., CBS/Ch. 2): Mike binges on junk food while Molly is out of town.Hawaii Five-0 (9 p.m., CBS/Ch. 2): A kidnap victim's body is found 10 years after she disappeared.Castle (9 p.m., ABC/Ch. 4): A government whistleblower is murdered.Revolution (9 p.m., NBC/Ch. 5): The good guys try to keep Monroe from obtaining anthrax.The Secret Life of the American Teenager (9 p.m., ABC Family): Amy and Ricky set a date for their wedding.Bates Motel (11 p.m., A&E): A mysterious stranger causes trouble for Norma.Newlyweds: The First Year (11 p.m., Bravo): This new docu-series follows four couples from their weddings through the first 365 days of their marriages. It's one of those shows that, if you sit down and watch a few minutes, you could end up watching the entire episode.