TransformersWhat: Shia LaBeouf,Tyrese Gibson and Josh Duhamel bring the popular cartoon series to life in the action-packed sci-fi flick.
When: In theaters July 2
Highlights: Robots are on the loose – and the human race is in jeopardy! How will all the heartthrobs survive? Sit back with some popcorn and Junior Mints and find out.
Concert for DianaWhat: Prince Harry and Prince William will host a star-studded tribute concert at Wembley Stadium – with acts from Kanye West to Fergie to Princess Diana's close pal Elton John – to honor their mother, who would've been 46 that day.
When: July 1; 11 a.m. ET on VH1 or 8 p.m. ET on NBC
Highlights: One of Diana's favorite bands, Duran Duran, will play "Rio," says guitarist Nick Rhodes, at the request of the princes. And we'll all hear it from the mountains in the north down to the Rio Grande (dancing on the sand will be optional).
Big BrotherWhat: Julie Chen returns to host season 8 of the hit reality show.
When: July 5; 8 p.m. ET on CBS
Highlights: Living in a house – on national television –with complete strangers is enough of a challenge. Now think about living in a house with your nemesis. That's exactly what the 14 contestants on Big Brother have to deal with this time around. And how can you not want to watch that?
Matt Sayles / AP
Macy's Fourth of July Fireworks SpectacularWhat: Jordin Sparks, Joss Stone and Martina McBride perform at the annual fireworks extravaganza hosted by Tiki Barber and Natalie Morales.
When: July 4, 9 p.m. ET on NBC
Highlights: It's a veritable Idol reunion: Apart from Sparks – this year's Idol herself – Melinda Doolittle and Blake Lewis will perform, too. Think Lewis will beat box in sync to the fireworks?
Picks of the WeekMusic: (in stores July 3) Velvet Revolver's Libertad.
Writes PEOPLE's critic Chuck Arnold: "There is plenty of sleazy good fun to be had on testosterone-charged tracks like 'Let It Roll.'"
Also out: Kelly Rowland's Ms. Kelly