LeAnn Rimes shows off her bikini body in two swimsuits as she cools off during the heatwave

LeAnn Rimes shows off her skinny body in two bikinis at beachside birthday bash (maybe she should dig into the cake!)

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UPDATED:

18:48 GMT, 13 August 2012

LeAnn Rimes is so proud of her slimline body that she needed two different bikinis to show it off on the beach yesterday.

The singer had not an inch of spare flesh as she ran around the beach in her swimsuits, at a bash to celebrate her birthday.

There was no sign of any cake, although LeAnn could perhaps do with some extra calories.

Time for some cake Birthday girl LeAnn Rimes is so proud of her bikini body that she needed two different bikinis to show it off on Newport Beach, California

Time for some cake Birthday girl LeAnn Rimes is so proud of her bikini body that she needed two different bikinis to show it off on Newport Beach, California

Time for some cake Birthday girl LeAnn Rimes is so proud of her bikini body that she needed two different bikinis to show it off on Newport Beach, California, yesterday

PDA: LeAnn puts on a public display of affection as she kisses her husband Eddie Cibrian on Newport Beach, California

PDA: LeAnn puts on a public display of affection as she kisses her husband Eddie Cibrian

Despite her very slender figure,
LeAnn, who is spending the whole of August by the coast to mark her birthday, tweeted that
she hadn't been to the gym in three weeks. 'Just volleyball,' she wrote.

And she added that her exercise routine included: 'Revolutionary And Motion online. Love it! And I box, jump rope.'

LeAnn was joined by her entire family on Newport Beach at the party to celebrate her 30th birthday.

LeAnn Rimes

LeAnn Rimes

LeAnn Rimes

Bikini girl: LeAnn first took to the beach in a grey strapless bikini, running around playing soccer and volleyball

Cooling off: LeAnn and Eddie took a dip in the Pacific as the temperature soared

Cooling off: LeAnn and Eddie took a dip in the Pacific as the temperature soared

Her mother, stepfather, father and stepmother all came together for the first time, with LeAnn writing: 'Time heals, people CAN change and tonight was the first beautiful night I've spent with our whole family in YEARS!!! I'm a happy woman!'

Although her actual birthday isn't until August 28, LeAnn is enjoying a month long celebration at the coast.

'I am celebrating all month. 30 deserves a month long party,' she explained.

LeAnn hosted her own party, writing: 'We'll all will be together today and
celebrating all of our bday's together later tonight.

'Beach &
awesome Italian! Happy woman.'

Mothering duties: LeAnn's husband Eddie's son Jake takes a walk with the couple, his brother Mason was also in the party

Mothering duties: LeAnn's husband Eddie's son Jake takes a walk with the couple, his brother Mason was also in the party

LeAnn added: 'I grocery shopped for 16 PEOPLE, made my “Martha” drinks
for everyone, mashed potatoes & Eddie did the grilling while talking
to both my dad's one on each side.

'I think they were “grilling” him.'

Leann
has been feeling philosophical about her landmark celebration. 'God
healed so many things for me to go free into 30!!!' she tweeted.

She certainly seemed in a good mood as she went jogging
around the Californian shore in a strapless grey number.

Leann Rimes

Getting in shape: LeAnn boasted that she hasn't been to the gym in three weeks, and her key to keeping her figure 'Just volleyball' she tweeted

LeAnn Rimes

Playtime: Eddie and LeAnn are spending the entire month of August at the coast

LeAnn used this
for a game of volleyball, with husband Eddie Cibrian.

After
clocking the watching photographer LeAnn then switched into a striped
white and orange string bikini, newly purchased that morning.

This one obviously appealed to her husband, who swept her into his arms for a very public display of affection, before taking her into the waves to cool them both off.

She
told an inquisitive fan that her stepsons, Jake, five, and Mason,
eight, were enjoying their break with her. 'They don't want to ever
leave this beach!'

Family celebration: LeAnn chats to both her mother and stepmother, after her entire extended family of 16 people came together

Family celebration: LeAnn chats to both her mother and stepmother, after her entire extended family of 16 people came together for her 30th