Jessica Alba 'starts post-baby workout routine'

Jessica Alba has started working out again less than three weeks after giving birth to her second child.

The Spy Kids 4: All the Time in the World actress and husband Cash Warren welcomed daughter Haven Garner on August 13.

"I did my first day of workout since I had the baby. Just cardio for 40 minutes. My doc told me I could start after 2 wks. I'm going light, stationary bike and elliptical," Alba wrote on her Twitter page last week.

The Little Fockers star also gave advice to several of her followers on how to shed their pregnancy weight, adding: "I would keep your diet as healthy as possible 6 days a week and give yourself one day to indulge.

"Start with walking and throw in 3 sets of lunges 20 per leg. Your could do it while strolling your baby."

She and Warren are also parents to a 3-year-old daughter named Honor.

Alba recently insisted that she will not allow her children to become involved in the film industry and work as actors until they are adults.

Bikini girl Selena Gomez enjoys poolside fun in Miami with Justin Bieber

Selena Gomez took a break from her tour schedule for an afternoon of poolside fun in Miami.

The Disney star, who turned 19 earlier this month, slipped into pretty pink bikini to cool off from the Florida heat on Friday.

At one point, she untied her bikini top to avoid getting tan lines as she reclined on a sun lounger after taking a dip in the pool at a luxury Orlando hotel.

The performer, who kicked off her summer tour on July 24 in Costa Mesa, is travelling throughout the US on her Dream Out Loud tour for the rest of this month.

Her boyfriend Justin Bieber joined her for part of the tour last week and was spotted taking in some sunshine the following day in Miami.

Hinting he has been in a rather romantic mood of late, he wrote on Twitter that same day: 'What makes you so beautiful is that you don't know how beautiful you are... to me.'

He also had a great deal of affection for the city too, adding: 'I LOVE MIAMI.'

The 17-year-old was spending time with singer Sean Kingston, who recently recovered from a jetski accident.

Bieber describes the star as a 'real friend.'

He is taking a month off to relax with his pals - and of course Selena - before beginning work on his next album.