this morning we've been showing you John legend's video for "All of me" a good example of what it means to be a power couple in the age of technology ? all of me loves all of you ? ? love your -- ?... See More
this morning we've been showing you John legend's video for "All of me" a good example of what it means to be a power couple in the age of technology ? all of me loves all of you ? ? love your -- ? We're talking about social media. Pop article in "The New York times" highlighting famous duos who boost each other's popularity through their own network of followers on Facebook and Twitter, of course, one person helping spread the word when their partner has a project in the works, think supermodel Chrissy Teigen and her husband John legend right there. Millions of followers between the two of them following one another. Kim Kardashian obviously and Kanye west. And the list goes on and on. It's kind of smart to do that. Lena Dunham and her boyfriend from fun. You like it when you know it's just because it's not because the person is famous. Their spouse, their partner and so proud of them and they just want to share. Yeah. Share with everybody. Sort of what we do honestly all tweeting each other through the show and all celebrate each other's projects around here too so it kind of makes sense. It is nice and that song just -- I know. So beautiful. Also this morning, never forget someone you meet. A new app launching today called human promises to keep you in the know wherever you go by making it easier to search for the people you've met on your mobile phone. The app updates your contacts list by not only storing a person's name and number but also by keeping context clues like where you met and the mutual friends you have so now when you bump into someone at the supermarket and can't remember the name search for the one thing you do remember about hem. This is smart. It really is. Yeah I car pool with this person and you out that information in and the name will come up or sometimes you remember their name but you can't remember where you met so you put the name in and the information where you met. I love that. It's great. There's an app for that. What's the name of the app. Human, human. It's pronounced human. Hi, my name is robin. We met, "Good morning America." Hold on one sec. A brilliant idea. So much information overload. Anything that helps is well kfrjts the Broadway cast of "Aladdin" sharing a moving tribute to robin Williams Tuesday night. He famously voiced the voice of genie and to honor him, Broadway genie James Monroe ikelehart leading the whole audience in a sing-along in "Friend like me." Take a listen. ? Well, that was the applause afterwards. It was really good because you see how much people were cheering. Amy does the best -- Of course. The best laid plans. Playbill's for Tuesday night's performance were stuffed with the lyrics. Now you hear people sing it. I can't win. After the commercial break take a listen. Absolutely. Everyone got into it and it really was a beautiful tribute to robin Williams. With that cast, they're amazing doing "Aladdin" right
This transcript has been automatically generated and may not be 100% accurate.