. >>> gwen stefani's big night in front of blake. >> he's like my besty. everybody knows what my love life is like. >> we are with her after her debut. >>> plus, getting that markle sparkle doesn't come cheap. the new duchess dropped $1 million on new clothes. who's paying for the fashion? >>> then, what you never knew about whitney houston. family secrets revealed. >>> then, robin williams remembered in a new documentary. >> we were the best of friends. >> our emotional night w9 comic that is knew him best. >>> our exclusive behind the scenes look at tom cruise's mission. >> what the hell is he doin "en tonight." >>> meghan markle becomes the million dollars duchess. how did she spend so much on fashion? we'll show you in a couple minutes. >>> gwen stefani kicked off her first ever las vegas residency last nightment we went to holla at her last night. >> this is a fantasy. you get to do it in front of blake shellston. >> you know what it feels like to wear a cowgirl costume right in front of blake shelton. [ cheers and applause ] >> what did he think of t

gwen stefani got up on stage for a quick duit belting out the no doubt hit, "just a girl." this isn't the first time they've teamed up. they shared the stage in 2012. ♪ oh i'm just a girl ♪ guess i'm some kind of freak >>> and finally, beyonce and jay z's tour kicks off next month. only we're with the opening act. >> she makes it easy. beyonce is such a gracious human being. it's going to be incredibly epic. i just know they're going to kill it. i already know. >> that's the spoiler. they're going kill it. >> we caught up with the talented teens, who also star in the show "grownish" before their soldout performance at new york last night. beyonce discovered the sisters and signed them to her label after seeing them cover her songs on youtube. >> what i love about beyonce is she always encourages us to be ourselves completely. >>> now to jay's former protege, kanye, and the wild wild west. he took over a wyoming wranch the support of wife, kim, to debut his new album, "ye." >> i hope you're enjoying the bonnfire. >> kanye's new lyrics don't shy away from name-dropping ce

. >>> now, we know that moms like gwen stefani and halle berry work hard to look so good. i'm so excited about this next piece. >> those ladies have abs of steel to prove how hard they work. if you're not a fan of the crunches like nancy and i, this knew pred yours might be the answer. leave it to a star of real housewives of new york city to test it out. >> i'm 53. every year, et gits tough per diamonds are not a girls' best friend. martinis are. i have done a ton of core work. why not speed up the process. oh, it's starting. off to the races. >> half-hour treatments twice a week for two weeks and you could get one step closer to abs like britney and j. lo? >> 30 minutes of your life and you're doing 20,000 situps in one session. they told me you see a huge change after four treatments. i may do the buttocks next. a little lifting and plumping. >> it's called emsculpt. it claims to held yop you lose fat and build muscle at the same time. >> youy get a slow degradation or release of the fat. it's eliminated from the body over several months. >> other celebs use the device,

gwen stefani dancing to her own music and causing a wedding crowd to go bananas on the dance floor. ♪ ain't no holla back girl >> gwen played wedding star this weekend at a friend's celebration in texas where boyfriend blake shelton, in suit and tie, was one of the groom's men. then gwen and all her boys hit the water during a rehearsal break for her upcoming vegas residency. >>> meantime in vegas, j. 's proud boyfriend captured her surprise performance with the chainsmokers at the wynn's xs nightclub. ♪ >> then on sunday, it was j. lo's turn in the supporting role. hanging as her man worked the broadcast booth at the houston astros-red sox game. >>> also keeping close this weekend, george and amal clooney. they hit the italian countryside sharing a scooter while george is on break from shooting his tv return in the hulu series, "catch 22." >>> and new couple ariana grande and "snl's" pete davidson have only been dating a few weeks. but pete is already making his feelings permanent. he showed off two new ariana-inspired tattoos over the weekend. including her dangerous women bunny e

. ♪ i'm just a girl >>> gwen stefani kicked off her first ever las vegas residency this week to rave review. she had a lot to live up to by performing inside plant hollywood. ♪ if it's real then i don't want to know ♪ >> other people shared this stage. jennifer lopez. are there any stylettos? snakes backstage? things left behind by the other ladies? >> no. it's funny. i saw jennifer here. i got to go in her life backstage dressing room. and, the thing about jennifer. we have a similar life. and back if the day, i remember prince said to me, he's like, you and jennifer, you are in competition. i remember being like in his limousine like, with him, and i'm look like what are you talking about? this was like ♪ waiting for tonight i don't understand. i'm in no doubt. and interestingly, we have had -- we're the same age. we just kind of went through our lives. had kids at the same time. i bought the house she had. i live in her house. she put the marble in, thank you, jennifer. now i'm in her dressing room. soy love her so much. but they cleared the whole thing out. i feel like i to

. >> gwen stefani. >> weren't those cool? >> i would like carl lagafeld's closet. >> i would have to dip into kate's a little bit. >> i would steal everything she had on at cannes. >> she's brilliant. >> even the underwear. >> don't tell me she had on granny panties. >> i want to remind you, i'm stopping right there. >> look, i'm not trying to brag or anything, but i have seen the movie. >> yeah. >> fantastic. >> you think it is "mission impossible." you think. >> what? >> just saying. >> all right. >> guess what? here is a guy that knows a little bit about getting that mission impossible thing done. tom cruise is back and it is a miracle he actually lived to talk about "mission impossible" fall-out. >> it is ironic you do all of these death-defying stunts. and the one that, like, got you was the seemingly innocuous jump across the bridge. >> i know. >> what is going through your mind when that happened? let's talk about that day. >> first of all, i was really angry. >> at your foot? >> at myself. i stuck my foot out just lit